CN206136259U - Loudspeaker diaphragm, speaker monomer and electronic equipment - Google Patents
Loudspeaker diaphragm, speaker monomer and electronic equipment Download PDFInfo
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- CN206136259U CN206136259U CN201621015404.9U CN201621015404U CN206136259U CN 206136259 U CN206136259 U CN 206136259U CN 201621015404 U CN201621015404 U CN 201621015404U CN 206136259 U CN206136259 U CN 206136259U
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- loudspeaker
- diaphragm
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- heat
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Abstract
The utility model discloses a loudspeaker diaphragm, speaker monomer and electronic equipment, this loudspeaker diaphragm (100) including compound at least two -layer rete (101, 102, 103) together, and one film separating layer (101) in all retes (101, 102, 103) be the pyrocondensation material rete, wherein, have at least one deck pyrocondensation material rete (101) to cover the book ring portion (120) of loudspeaker diaphragm (100) at least. This speaker monomer includes the utility model discloses a loudspeaker diaphragm (100). This electronic equipment is provided with the utility model discloses a speaker monomer.
Description
Technical field
This utility model is related to electro-acoustic product technical field, more particularly, to a kind of diaphragm of loudspeaker, is provided with this kind
The loudspeaker monomer of the diaphragm of loudspeaker and it is provided with the electronic equipment of this kind of loudspeaker monomer.
Background technology
Loudspeaker monomer is to drive diaphragm oscillations by the signal of telecommunication, and then instigates the electroacoustic of surrounding air sounding by vibrating diaphragm
Switching device.By taking coil-moving speaker as an example, its loudspeaker monomer includes shell and vibrational system and magnetic on shell
Road system, vibrational system includes vibrating diaphragm and the voice coil loudspeaker voice coil being fixedly connected on vibrating diaphragm, and voice coil loudspeaker voice coil is located at the magnetic gap of magnetic circuit system
In, operationally, vibrational system receives the signal of telecommunication by voice coil loudspeaker voice coil, so that voice coil loudspeaker voice coil drives vibrating diaphragm in the presence of magnetic field in magnetic gap
Up-down vibration further realizes the conversion of electric energy to acoustic energy.As can be seen here, vibrating diaphragm is most important for speaker.
For traditional Microspeaker, it will produce substantial amounts of working long hours, when using intelligent power output amplification
Heat, causes vibrating diaphragm temperature to raise, and vibrating diaphragm will soften at high temperature, and then causes the equivalent pliable Cms of vibrational system to become big
And cause amplitude to increase.Therefore, in that case, vibrational system be readily able to other assemblies occur wiping touch and increase appearance it is miscellaneous
The probability of sound, and then have a strong impact on the acoustical behavior of speaker and the experience of consumer.
Utility model content
The purpose of this utility model embodiment is to propose a kind of new technical scheme of the diaphragm of loudspeaker, to improve vibrating diaphragm
Rigidity of the system under heating status.
According to first aspect of the present utility model, there is provided a kind of diaphragm of loudspeaker, it includes being combined with each other at least
A part of film layer in two-layer film layer, and all film layers is material contracting with heat film layer, wherein, at least one layer material contracting with heat film layer is extremely
The ring portion of the diaphragm of loudspeaker is covered less.
Optionally, each film layer covers all parts of the diaphragm of loudspeaker.
Optionally, the ring portion of the diaphragm of loudspeaker arranges and fixes with the central part split of the diaphragm of loudspeaker
Link together；And each material contracting with heat film layer only covers the ring portion of the diaphragm of loudspeaker.
Optionally, also an at least tunic layer is Thermoplastic polyurethane elastomer material film layer in all film layers, and/or
Also an at least tunic layer is polyetheretherketonematerials materials film layer in all film layers.
Optionally, at least one layer material contracting with heat film layer is located at outermost layer.
Optionally, only one layer material contracting with heat film layer is located at outermost layer, and positioned at outermost material contracting with heat film layer
The convex surface in the outer surface correspondence ring portion.
Optionally, the diaphragm of loudspeaker has one layer of material contracting with heat film layer, and the thickness of the material contracting with heat film layer
Account for the 20%-70% of the thickness of the diaphragm of loudspeaker.
Optionally, the diaphragm of loudspeaker has one layer of material contracting with heat film layer, and the thickness of the material contracting with heat film layer
More than or equal to 10 μm, less than or equal to 30 μm.
According to second aspect of the present utility model, there is provided a kind of loudspeaker monomer, it is provided with according to this utility model
The diaphragm of loudspeaker described in first aspect.
According to the third aspect of the present utility model, there is provided a kind of electronic equipment, it is provided with according to this utility model
Loudspeaker monomer described in two aspects.
The beneficial effects of the utility model are that at least one of which pyrocondensation material is compounded with the diaphragm of loudspeaker of the present utility model
Material film layer, so, when speaker temperature is increased to certain value, the material contracting with heat film layer in the diaphragm of loudspeaker is just started to shrink at.
Here, because at least one layer material contracting with heat film layer covers the ring portion of the diaphragm of loudspeaker, and the contraction in ring portion can drop significantly
The equivalent pliable Cms of low vibration system, and therefore improve the rigidity of vibrational system, and then effectively reduce speaker in heating status
Under amplitude, it is to avoid because noise or performance are bad caused by amplitude is increased, improve product quality.
By referring to the drawings to the detailed description of exemplary embodiment of the present utility model, it is of the present utility model other
Feature and its advantage will be made apparent from.
Description of the drawings
It is combined in the description and the accompanying drawing of the part that constitutes description shows embodiment of the present utility model, and
And be used to explain principle of the present utility model together with its explanation.
Fig. 1 is a kind of structural representation of the embodiment according to this utility model diaphragm of loudspeaker；
Fig. 2 is the cross-sectional schematic of Fig. 1；
Fig. 3 is the cross-sectional schematic of another kind of embodiment according to this utility model diaphragm of loudspeaker；
Fig. 4 is the cross-sectional schematic of the third embodiment according to this utility model diaphragm of loudspeaker.
Description of reference numerals
The 100- diaphragms of loudspeaker；The first film layers of 101-/material contracting with heat film layer；
The film layers of 102- second；103- third membrane layer；
110- central parts；120- rings portion；
130- fixed parts.
Specific embodiment
Describe various exemplary embodiments of the present utility model in detail now with reference to accompanying drawing.It should be noted that：Unless another
Illustrate outward, the part and the positioned opposite of step, numerical expression and numerical value for otherwise illustrating in these embodiments is not limited
Make scope of the present utility model.
It is below illustrative to the description only actually of at least one exemplary embodiment, never as to this practicality
New and its application or any restriction for using.
For technology, method and apparatus may be not discussed in detail known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered a part for description.
In all examples shown here and discussion, any occurrence should be construed as merely exemplary, and not
It is as restriction.Therefore, other examples of exemplary embodiment can have different values.
Fig. 1 and Fig. 2 are a kind of structural representations of the embodiment according to this utility model diaphragm of loudspeaker.
According to Fig. 1 and Fig. 2, this utility model diaphragm of loudspeaker 100 as conventional speakers vibrating diaphragm, on the whole
The ring portion 120 arranged including three parts, the central part 110, circular central part 110 respectively positioned at center and ring
Around the fixed part 130 being fixedly connected for the shell with loudspeaker monomer that ring portion 120 is arranged.
From unlike conventional speakers vibrating diaphragm, this utility model diaphragm of loudspeaker 100 includes three layers for being combined with each other
Film layer, the first film layer 101 being respectively combined with each other from top to bottom in fig. 2, the second film layer 102 and third membrane layer 103, its
In, the first film layer 101 is material contracting with heat film layer, and the first film layer 101 at least covers ring portion 120.Covering mentioned in this article
Namely the implication of " being distributed ", so that the first film layer 101 at least covers ring portion 120 as an example, illustrate that ring portion 120 has the first film
At least a portion of layer 101.
Wherein, material contracting with heat is referred to as polymer shape memory material again, is macromolecular material and radiation processing technology
A kind of intelligent material of cross coupled.Common high molecular materials such as polyethylene, polrvinyl chloride etc. are typically linear structure, pass through
The radiation effects of the radioactive sources such as electron accelerator become after network structure, and these materials will possess " memory effect " of uniqueness,
Expansion, the material of cooling and shaping can again shrink after being heated and return to the original form.Therefore, when the diaphragm of loudspeaker 100
When temperature is increased to certain value (crystalline melting temperature of the macromolecular material of material contracting with heat film layer 101), in the diaphragm of loudspeaker 100
Material contracting with heat film layer 101 just start to shrink at.Here, because the material contracting with heat film layer 101 at least covers the diaphragm of loudspeaker 100
Ring portion 120, and the equivalent pliable Cms of the vibrational system that will substantially reduce speaker is shunk in ring portion 120, and therefore improve
The rigidity of vibrational system, and then amplitude of the speaker under heating status can be effectively reduced, it is to avoid lead because amplitude is increased
The noise or performance of cause is bad, improves product quality, wherein, equivalent pliable Cms is the support member of speaker vibration system
Compliance, equivalent pliable Cms is bigger, and vibrational system is softer, and rigidity is lower.
Second film layer 102 can be the glue-line for the first film layer 101 and third membrane layer 103 to be combined with each other, and also may be used
Think the base material film layer of the material to being applied to molding conventional speakers vibrating diaphragm.
Used as base material film layer, it for example can be Thermoplastic polyurethane elastomer material to second film layer 102
(Thermoplastic polyurethanes, TPU) film layer, polyetheretherketonematerials materials (polyetheretherketone, PEEK)
Film layer, thermoplastic elastic material (Thermoplastic Elastomer, TPE) film layer, polypropylene material film layer
(Polypropylene, PP), composite fibre materials film layer etc..
Third membrane layer 103 can be the base material film layer of the material that correspondence is used for molding conventional speakers vibrating diaphragm, and it for example may be used
Being Thermoplastic polyurethane elastomer material (Thermoplastic polyurethanes, TPU) film layer, polyetheretherketonematerials materials
(polyetheretherketone, PEEK) film layer, thermoplastic elastic material (Thermoplastic Elastomer, TPE)
Film layer, polypropylene material film layer (Polypropylene, PP), composite fibre materials film layer etc..
Above-mentioned material contracting with heat film layer 101 should at least cover the ring portion 120 of the diaphragm of loudspeaker 100, to realize being heated
State causes the purpose that ring portion 120 shrinks.But in this embodiment, each film layer 101,102,103 covers speaker and shakes
All parts of film 100, i.e., cover central part 110, ring portion 120 and the fixed part 130 of the diaphragm of loudspeaker 100, in order to
Carry out the molding of the compound and diaphragm of loudspeaker 100 between each film layer.
In this embodiment, material contracting with heat film layer 101 is located at the outermost layer of composite film, and the material contracting with heat film layer 101
Outer surface correspondence ring portion 120 convex surface.
In a further embodiment, material contracting with heat film layer can also be located at arbitrary intermediate layer, or positioned at composite film
Outermost layer when, the concave surface in its outer surface correspondence ring portion 120.
In order on the premise of the other performance of vibrating diaphragm is ensured, obtaining under heating status and preferably lifting vibration system
The effect of system rigidity, the thickness of the material contracting with heat film layer 101 is more than or equal to 10 μm, less than or equal to 30 μm.
Consider from another angle, also for the effect that preferably lifting vibrational system rigidity is obtained under heating status
Really, the thickness of material contracting with heat film layer 101 is the 20%-70% of the thickness of the diaphragm of loudspeaker.
In the present embodiment, the thickness of material contracting with heat film layer 101 is 15 μm.Here, the gross thickness of the diaphragm of loudspeaker is usual
At 20 μm to 50 μm, in the present embodiment, the gross thickness of the diaphragm of loudspeaker is 45 μm, and the thickness of trilamellar membrane layer 101,102,103
Degree is equal.
In a further embodiment, the diaphragm of loudspeaker can also include the two-layer film layer being combined with each other or more than three layers
Film layer, the performance of diaphragm of loudspeaker different aspect is lifted using the characteristic of the material of different film layers or increases new work(
Can, for example cause the diaphragm of loudspeaker can be with the fixed polar plate group being arranged in speaker cover body by a compound layer graphene film layer
Into capacitor, and then provide the feedback with regard to vibrating.
For the embodiment that composite film has the more than two-layer material contracting with heat film layer (including two-layer), any two-layer pyrocondensation material
Separate preferably through base material film interlayer between material film layer, so that material contracting with heat film layer is acted as in the different aspects of composite film
With.
For the embodiment that composite film has two-layer above material contracting with heat film layer, the height that each layer material contracting with heat film layer is based on
Molecular material can be with identical, it is also possible to different.
The manufacture process of the above-mentioned diaphragm of loudspeaker 100 may include following steps：
A) carry out under upper sequentially including the compound of the first film layer 101, the second film layer 102 and third membrane layer 103, obtain
Composite film.
Complex method can be that to arrange the second film layer 102 be glue-line, and then by the second film layer 102 by the first film layer 101
It is combined with each other with third membrane layer 103, forms composite film.
Complex method can also be surface deposition, surface evaporation, Multi-step injection molding etc. according to the material of film layer.
B) forming processes are carried out to composite film and forms the diaphragm of loudspeaker 100, that is, mold central part 110, ring portion 120
With fixed part 130.
Fig. 3 is the cross-sectional schematic of another kind of embodiment according to this utility model diaphragm of loudspeaker.
According to Fig. 3, the material contracting with heat film layer 101 of the diaphragm of loudspeaker only covers the ring portion 120 of the diaphragm of loudspeaker,
In the case where the performance of central part 110 is good enough, to reduce the burden of central part 110.
In the embodiment shown in fig. 3, the diaphragm of loudspeaker only has one layer of material contracting with heat film layer 101, and positioned at speaker
The outermost layer of vibrating diaphragm.
In a further embodiment, the diaphragm of loudspeaker can also have the material contracting with heat film of more than two-layer (including two-layer)
Layer.
In the embodiment shown in fig. 3, the convex surface in the outer surface correspondence ring portion 120 of material contracting with heat film layer 101.
In a further embodiment, the outer surface of material contracting with heat film layer 101 can also correspond to the concave surface in ring portion 120.
Fig. 4 is the cross-sectional schematic of the third embodiment according to this utility model diaphragm of loudspeaker.
According to Fig. 4, the diaphragm of loudspeaker is differred primarily in that with the diaphragm of loudspeaker shown in Fig. 3, the diaphragm of loudspeaker
Central part 110 and ring portion 120 be structure that split is arranged, is fixed together by the means such as bonding again.For this
Structure is planted, the molding difficulty in the ring portion 120 for causing material contracting with heat film layer 101 only to cover the diaphragm of loudspeaker can be substantially reduced.
In a further embodiment, central part 110 can also be in the base material film layer 102 1 in ring portion 120 with ring portion 120
Side is fixed together.
In the embodiment shown in fig. 4, central part 110 can be monofilm, or composite membrane more than two-layer.
This utility model additionally provides a kind of loudspeaker monomer, and the loudspeaker monomer has raises one's voice according to of the present utility model
Device vibrating diaphragm, such as with the above-mentioned diaphragm of loudspeaker 100.
So that loudspeaker monomer is as coil-moving speaker as an example, the loudspeaker monomer also includes magnetic circuit system and voice coil loudspeaker voice coil, voice coil loudspeaker voice coil
It is fixedly connected on the outer surface of the diaphragm of loudspeaker 100, correspondence ring portion 120 concave surface, for embodiment illustrated in fig. 1, i.e.,
It is fixedly connected on the outer surface of material contracting with heat film layer/the first film layer 101 for voice coil loudspeaker voice coil, and voice coil loudspeaker voice coil is located at the magnetic gap of magnetic circuit system
In, when voice coil loudspeaker voice coil receives the signal of telecommunication, to drive the diaphragm of loudspeaker 100 to vibrate in the presence of the magnetic field in magnetic gap, and then
Instigate surrounding air sounding.
This utility model additionally provides a kind of electronic equipment for being provided with this kind of loudspeaker monomer, and the electronic equipment is, for example,
Mobile phone, panel computer, wearable device etc..
Although being described in detail to some specific embodiments of the present utility model by example, this area
It is to be understood by the skilled artisans that example above is merely to illustrate, rather than in order to limit scope of the present utility model.This
Field it is to be understood by the skilled artisans that can be in the case of without departing from scope and spirit of the present utility model, to above example
Modify.Scope of the present utility model is defined by the claims.
Claims (10)
1. a kind of diaphragm of loudspeaker (100), it is characterised in that including be combined with each other at least two-layer film layer (101,102,
103) a part of film layer (101), and in all film layers (101,102,103) is material contracting with heat film layer, wherein, at least one layer
Material contracting with heat film layer (101) at least covers the ring portion (120) of the diaphragm of loudspeaker (100).
2. the diaphragm of loudspeaker (100) according to claim 1, it is characterised in that each film layer (101,102,103) is covered
Cover all parts (110,120,130) of the diaphragm of loudspeaker (100).
3. the diaphragm of loudspeaker (100) according to claim 1, it is characterised in that the ring of the diaphragm of loudspeaker (100)
Portion (120) arranges and is fixed together with central part (110) split of the diaphragm of loudspeaker；And each pyrocondensation material
Material film layer (101) only covers the ring portion (120) of the diaphragm of loudspeaker (100).
4. the diaphragm of loudspeaker (100) according to claim 1, it is characterised in that an also at least tunic in all film layers
Layer is for also an at least tunic layer is polyetheretherketonematerials materials in Thermoplastic polyurethane elastomer material film layer, and/or the film layer
Film layer.
5. the diaphragm of loudspeaker (100) according to claim 1, it is characterised in that at least one layer material contracting with heat film layer
(101) positioned at outermost layer.
6. the diaphragm of loudspeaker (100) according to claim 5, it is characterised in that only one layer material contracting with heat film layer (101)
Positioned at outermost layer, and the convex surface of the outer surface correspondence ring portion (120) positioned at outermost material contracting with heat film layer (101).
7. the diaphragm of loudspeaker (100) according to any one of claim 1 to 6, it is characterised in that the diaphragm of loudspeaker
(100) with one layer of material contracting with heat film layer (101), and the thickness of the material contracting with heat film layer (101) is the diaphragm of loudspeaker
(100) 20%-70% of thickness.
8. the diaphragm of loudspeaker (100) according to any one of claim 1 to 6, it is characterised in that the diaphragm of loudspeaker
(100) with one layer of material contracting with heat film layer (101), and the thickness of the material contracting with heat film layer (101) is more than or equal to 10 μm,
Less than or equal to 30 μm.
9. a kind of loudspeaker monomer, it is characterised in that the diaphragm of loudspeaker being provided with any one of claim 1 to 8
(100)。
10. a kind of electronic equipment, it is characterised in that the loudspeaker monomer being provided with described in claim 8 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621015404.9U CN206136259U (en) | 2016-08-31 | 2016-08-31 | Loudspeaker diaphragm, speaker monomer and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621015404.9U CN206136259U (en) | 2016-08-31 | 2016-08-31 | Loudspeaker diaphragm, speaker monomer and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206136259U true CN206136259U (en) | 2017-04-26 |
Family
ID=58567400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621015404.9U Active CN206136259U (en) | 2016-08-31 | 2016-08-31 | Loudspeaker diaphragm, speaker monomer and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206136259U (en) |
-
2016
- 2016-08-31 CN CN201621015404.9U patent/CN206136259U/en active Active
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