CN206640902U - The shell structure and electronic product of a kind of built-in microphone - Google Patents
The shell structure and electronic product of a kind of built-in microphone Download PDFInfo
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- CN206640902U CN206640902U CN201720389889.6U CN201720389889U CN206640902U CN 206640902 U CN206640902 U CN 206640902U CN 201720389889 U CN201720389889 U CN 201720389889U CN 206640902 U CN206640902 U CN 206640902U
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- microphone
- positioning convex
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- installation groove
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Abstract
The utility model discloses a kind of shell structure of built-in microphone and electronic product.The shell structure of the built-in microphone includes outer shell, inner layer case and microphone, the outwardly extension of inner layer case is formed with positioning convex, the positioning hole to match with positioning convex is provided with outer shell, in positioning convex insertion positioning hole and outer shell is fixed on the outer surface of inner layer case, installation groove is provided with inner surface of the inner layer case away from outer shell direction side, microphone sealed set is in installation groove, the acoustic aperture of adopting of microphone is located in installation groove towards the side of positioning convex, position of the positioning convex with installation groove in inner layer case is corresponding, the through hole connected with adopting acoustic aperture to align is provided with inner layer case and positioning convex.The shell structure and electronic product of built-in microphone provided by the utility model, it can solve the problem that the technical problem that Mike's elegance acoustic aperture is blocked in inside and outside plastic parts displacement, deformation process.
Description
Technical field
Electronic technology field is the utility model is related to, specifically, the utility model is related to a kind of housing of built-in microphone
Structure and electronic product.
Background technology
With the fast development of electronic technology, microphone design is designed by only possessing the single microphone of sound-recording function originally,
Can possess the multi-microphone design of the functions such as noise reduction, positioning or tracking till now.In order to realize noise reduction, positioning or tracking etc.
Function, require that multi-microphone there will be good uniformity in structure assembling on algorithm, while avoid existing because of microphone ante-chamber
The poorly sealed and sound leakage problem brought.According to different algorithm requirements, the position of each microphone in multi-microphone design
There are strict requirements with angle design.Therefore, all microphones may not be needed also exist in one plane by Mike
Wind is assembled in electronic product side etc., and some are unfavorable for the position that structure assembles.
, it is necessary to which microphone is assembled in into inside and outside plastic cement in the electronic products such as existing virtual reality device, augmented reality equipment
In gap between part.Directly FPC plates are fixed by plastic parts hot melt in stiffening plate, alignment is provided with outer plastic parts
Sound through hole.This kind design can produce problems with：(1) in assembling process, the easy displacement of inside and outside plastic parts, deformation, easily make
Into the blocking for adopting acoustic aperture, acoustic quality is influenceed；(2) microphone can not realize good sealing, and assembly failure is with regard to that can cause entirely
Product acoustical behavior can not meet requirement and scrap.
Therefore, it is necessary to the shell structure of existing built-in microphone is improved.
Utility model content
A purpose of the present utility model is to provide a kind of shell structure of built-in microphone and the new skill of electronic product
Art scheme.
According to first aspect of the present utility model, there is provided a kind of shell structure of built-in microphone.The built-in microphone
Shell structure include outer shell, inner layer case and microphone, the outwardly extension of the inner layer case formed with positioning convex,
The positioning hole to match with the positioning convex is provided with the outer shell, the positioning convex is inserted in the positioning hole
And the outer shell is fixed on the outer surface of the inner layer case, in the inner layer case away from the side of the outer shell direction
Installation groove is provided with surface, for the microphone sealed set in the installation groove, the microphone adopts acoustic aperture position
In, towards the side of the positioning convex, the positioning convex is with the installation groove in the inner layer case in the installation groove
On position it is corresponding, be provided with the inner layer case and the positioning convex and alignd the through hole that connects with the acoustic aperture of adopting.
Alternatively, the positioning convex includes main part and the positioning extended outwardly by the weekly form of the main part
Muscle, the through hole are arranged on the main part.
Alternatively, the microphone is arranged in elastic seal cartridge and is interference fitted with the elastic seal cartridge, the bullet
Property seal be arranged in the installation groove and be interference fitted with the installation groove, the acoustic aperture of adopting of the microphone is located at institute
State in elastic seal cartridge towards the side of the positioning convex.
Alternatively, the elastic seal cartridge is silica gel sheath or elastic caoutchouc set.
Alternatively, in addition to stiffening plate and FPC, the elastic seal cartridge is the tubular structure that side is provided with opening, described
FPC fits in the outer surface that the elastic packing puts the opening side, the stiffening plate, the FPC and the microphone
It is sequentially fixed at together.
Alternatively, the opening puts the side away from the positioning convex direction positioned at the elastic packing, described
Elastic packing is put provided with being alignd the first acoustic aperture for connecting with the acoustic aperture of adopting, and the FPC and stiffening plate are fixed on the internal layer
The elastic seal cartridge is compressed on the inner surface of shell and towards the positioning convex.
Alternatively, there is hot molten column in the inner surface setting of the inner layer case, the hot molten column is configured as described in
The FPC, stiffening plate hot melt are fixed in the inner layer case when positioning convex compresses the elastic seal cartridge.
Alternatively, the opening puts side towards the positioning convex positioned at the elastic packing, in the FPC and
Stiffening plate is provided with to align the second acoustic aperture for connecting with the acoustic aperture of adopting, and the stiffening plate fits in the installation groove through foam
Bottom surface, the foam around second acoustic aperture set, the FPC, stiffening plate are fixed on the bottom surface of the installation groove
And compress the foam towards the positioning convex.
Alternatively, hot molten column is provided with the bottom surface of the installation groove, the hot molten column is configured as described in
The FPC, stiffening plate hot melt are fixed on the bottom surface of the installation groove when positioning convex compresses the foam.
According to second aspect of the present utility model, there is provided a kind of electronic product.The electronic product includes above-mentioned built-in wheat
The shell structure of gram wind.
In the shell structure and electronic product of built-in microphone provided by the utility model, inner layer case passes through positioning convex
Insert in the positioning hole of outer shell, be not susceptible to relative displacement, deformation.Microphone is arranged in the installation groove of inner layer case,
Directly set in the inner layer case and positioning convex of one and alignd the through hole that connects with the acoustic aperture of adopting of microphone, can avoid adopting acoustic aperture
Blocking.Mike's wind energy is preferably sealed in the installation groove of inner layer case, avoids microphone acoustic poor sealing.
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
It is combined in the description and the accompanying drawing of a part for constitution instruction shows embodiment of the present utility model, and
And it is used to explain principle of the present utility model together with its explanation.
Fig. 1 is the explosive view of the shell structure of the built-in microphone provided in a kind of embodiment of the utility model；
Fig. 2 is the partial sectional view of the shell structure of the built-in microphone provided in a kind of embodiment of the utility model；
Fig. 3 is the partial sectional view of the shell structure of the built-in microphone provided in a kind of embodiment of the utility model；
Fig. 4 is the structural representation of the positioning convex provided in a kind of embodiment of the utility model.
Wherein, 1：Outer shell；10：Positioning hole；2：Inner layer case；20：Positioning convex；200：Through hole；201：Positioning bar；21：
Installation groove；22 installations are raised；220：Hot molten column；23：Hot molten column；3：Elastic seal cartridge；30：First acoustic aperture；4：Microphone；
40：Adopt acoustic aperture；5：Stiffening plate；6：FPC；560：Second acoustic aperture；7：Foam.
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, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus 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.
The utility model provides a kind of shell structure of built-in microphone, and referring to figs. 1 to Fig. 4, the shell structure includes
Outer shell 1, inner layer case 2 and microphone 4.The positioning convex 20 to stretch out is provided with the side surface of inner layer case 2 one.It is corresponding
Ground, the positioning hole 10 to match with the shape of the positioning convex 20 is provided with the outer shell 1, to cause the positioning
Projection 20 can be inserted in the positioning hole 10.The positioning convex 20 is inserted in the positioning hole 10.The outer shell 1 is fixed on
On the side surface of inner layer case 2 one, the outer shell 1 surrounds the inner layer case 2.Define in the inner layer case 2 towards described outer
Layer shell 1 one side surface is the outer surface of the inner layer case 2, the surface away from the direction side of outer shell 1 in the inner layer case 2
For outer surface.For example, the positioning convex 20 in the inner layer case 2 first can be inserted into the positioning hole 10 on the outer shell 1
Interior, the outer shell 1 can be fixedly mounted on the outer surface of the inner layer case 2 by connected modes such as hot melt or screw threads afterwards.
Installation groove 21 is provided with inner surface of the inner layer case 2 away from the direction side of outer shell 1.The peace
Dress groove 21 includes all side surfaces and the bottom surface between all side surfaces.Such as when the inner layer case 2 is relatively thin, can be in institute
State and installation projection 22 is outward extended with inner layer case 2, the installation groove 21 is set on the surface of the installation projection 22.
The sealed set of microphone 4 is in the installation groove 21.Such as the microphone 4 can by foam or
Other seals are arranged in the installation groove 21.The acoustic aperture 40 of adopting of the microphone 4 is located at court in the installation groove 21
To the side of the positioning convex 20.The positioning convex 20 is located at the two of the inner layer case 2 respectively with the installation groove 21
Side.The position of the positioning convex 20 and the installation groove 21 in the inner layer case 2 is corresponding.In the He of inner layer case 2
It is provided with the positioning convex 20 and is alignd the through hole 200 that connects with the acoustic aperture 40 of adopting.
Inner layer case 2 is inserted by positioning convex 20 in the positioning hole 10 of outer shell 1, is not susceptible to relative displacement, deformation.Wheat
Gram wind 4 is arranged in the installation groove 21 of inner layer case 2, directly setting and Mike in the inner layer case 2 of one and positioning convex 20
The through hole 200 for adopting the alignment connection of acoustic aperture 40 of wind 4, can avoid the blocking for adopting acoustic aperture 40.Microphone 4 can be sealed preferably
In in the installation groove 21 of inner layer case 2, it is bad to avoid the acoustic seal of microphone 4.
The sealed set of microphone 4 is in the installation groove 21.Preferably, the microphone 4 can be arranged at bullet
In property sealing shroud 3.The elastic seal cartridge 3 is interference fitted with the microphone 4.The elastic seal cartridge 3 is arranged at the peace
Fill in groove 21.The elastic seal cartridge 3 and the inner surface of the installation groove 21 are interference fitted.The microphone 4 adopts sound
Hole 40 is located in the receiving space of elastic seal cartridge 3 towards the side of the positioning convex 20.The elastic seal cartridge 3 it is close
It is good to seal effect, so as to avoid the bad of the acoustic seal of microphone 4.
It is appreciated that the elastic seal cartridge 3 may include receiving space for placing the microphone 4 and for putting
Enter the opening of the microphone 4.Microphone 4 enters in the receiving space from the opening.In an assembling process, can be first by wheat
Gram wind 4 loads in the elastic seal cartridge 3, then that the elastic seal cartridge 3 and the microphone 4 are together put into the installation is recessed
In groove 21.The appearance and size of the elastic seal cartridge 3 can be slightly larger than the size of the installation groove 21, so as to by the elasticity
Sealing shroud 3 is put into the installation groove 21 and realizes sealing.Similarly, the appearance and size of the microphone 4 can be slightly larger than described
The size of the receiving space of elastic seal cartridge 3.In this way, the inner and outer surfaces of the elastic seal cartridge 3 are extruded realization sealing.
The utility model is not limited specifically the material of the elastic seal cartridge 3, as long as the elastic seal cartridge 3 exists
The effect of sealing can be realized after being extruded, alternatively, the elastic seal cartridge 3 can be silica gel sheath or elastic caoutchouc set
Deng.
The utility model does not limit the concrete structure of the elastic seal cartridge 3.Alternatively, the elastic seal cartridge 3 is
Side is provided with the tubular structure of opening.Such as the monnolithic case of the elastic sealing element can be rectangular parallelepiped structure or cylinder
Structure etc..The shell structure can also include FPC6 and the support FPC6 stiffening plate 5.The FPC6 can be fitted in
Surface on the elastic seal cartridge 3 where its opening.The stiffening plate 5, the FPC6 and the microphone 4 are sequentially fixed at
Together.Specifically, the stiffening plate 5, the FPC6 and the microphone 4 can be pasted together by surface mounting technology.
In this way, the microphone 4 can be electrically connected by the FPC6 with external circuitry.Certainly, the microphone 4 can also pass through lead
Extraneous pcb board electrical connection.
The FPC6 and stiffening plate 5 fit in the surface where its opening on the elastic seal cartridge 3.The elastic packing
Position of the opening of set 3 in the installation groove 21 does not limit uniquely.
In one example, with reference to figure 2, the opening is on the elastic seal cartridge 3 away from the positioning convex 20
The side in direction.Because the acoustic aperture 40 of adopting of the microphone 4 is located in the elastic seal cartridge 3 towards the positioning convex 20
Side, thus the acoustic aperture 40 of adopting is located at the side away from the opening direction on the microphone 4.In the elastic seal cartridge
3 are provided with and are alignd the first acoustic aperture 30 for connecting with the acoustic aperture 40 of adopting.The FPC6 and stiffening plate 5 are fixed on the inner layer case 2
Inner surface on, and the elastic seal cartridge 3 is compressed towards the positioning convex 20, to seal the microphone 4.Certainly, exist
In the example, the FPC6 can be replaced into lead, and stiffening plate 5 is then the pressing plate of the compression elastic seal cartridge 3.
The FPC6 and stiffening plate 5 can be connected through a screw thread or heat the mode such as fixed and be fixed on the inner layer case 2
Inner surface on.Preferably, there is hot molten column 220 in the inner surface setting of the inner layer case 2.Such as the hot molten column 220 can be with
It is arranged on the surface of the installation projection 22.Accordingly, hot melt hole is provided with the FPC6, stiffening plate 5.Towards the positioning
Projection 20 compresses the elastic seal cartridge 3, and heating hot molten column 220 is to be fixed in the hot melt hole, by the FPC6, reinforcement
The hot melt of plate 5 is fixed in the inner layer case 2.The concrete structure in the hot melt hole can be prior art, and therefore not to repeat here.
In another example, with reference to figure 3, the opening is on the elastic seal cartridge 3 towards the positioning convex
20 side.Because the acoustic aperture 40 of adopting of the microphone 4 is located in the elastic seal cartridge 3 towards the one of the positioning convex 20
Side, thus the acoustic aperture 40 of adopting is located on the microphone 4 towards the side of the opening.On the FPC6 and stiffening plate 5
Provided with being alignd the second acoustic aperture 560 for connecting with the acoustic aperture 40 of adopting.The stiffening plate 5 fits in the installation groove through foam 7
21 bottom surface.The foam 7 is set around second acoustic aperture 560.The FPC6, stiffening plate 5 are towards the positioning convex 20
Compress the foam 7.In this way, the foam 7 is compacted so as to play a part of adopting acoustic aperture 40 described in sealing.Certainly, in the example
In son, the FPC6 can also be replaced into lead.
The FPC6 and stiffening plate 5 can be connected through a screw thread or heat the mode such as fixed and be fixed on the installation groove
On 21 bottom surface.Preferably, the bottom surface of the installation groove 21 is provided with hot molten column 23.Accordingly, in the FPC6, reinforcement
Plate 5 is provided with hot melt hole.When compressing the foam 7 towards the positioning convex 20, the FPC6, stiffening plate 5 are heated solid
Due on the bottom surface of the installation groove 21.It can play a part of adopting acoustic aperture 40 described in sealing in this way, the foam 7 is compacted.
To avoid the hydrone in the external world from being entered by the through hole 200, the acoustic aperture 40 of adopting in the microphone 4
Portion.Preferably, it is also provided with waterproof membrane in the position of the through hole 200.The concrete structure and assembling mode of the waterproof membrane
For prior art, therefore not to repeat here.Such as the waterproof membrane can be by waterproof sticking double faced adhesive tape in the acoustic aperture 40 of adopting
Inner surface.
In order to obtain more preferably locating effect, it is preferable that the positioning convex 20 includes main part and by the main body
Some positioning bars 201 that the side surface in portion stretches out.The through hole 200 is arranged on the main part.The main part can
Think cylindrical structure or rectangular configuration etc..Such as shown in Fig. 4, the quantity of the positioning bar 201 can be four, four institutes
It is overall in cross shape distribution to state positioning bar 201.
The utility model additionally provides a kind of electronic product, and the electronic product includes the housing knot of above-mentioned built-in microphone
Structure.The electronic product can be smart mobile phone, intelligent watch, virtual reality device, augmented reality equipment, mixed reality equipment
Deng.
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 example above 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)
- A kind of 1. shell structure of built-in microphone, it is characterised in that including outer shell (1), inner layer case (2) and microphone (4), The outwardly extension of the inner layer case (2) formed with positioning convex (20), be provided with the outer shell (1) with it is described The positioning hole (10) that positioning convex (20) matches, the positioning convex (20) is inserted in the positioning hole (10) and the outer layer Shell (1) is fixed on the outer surface of the inner layer case (2), in the inner layer case (2) away from the outer shell (1) direction side Installation groove (21) is provided with inner surface, microphone (4) sealed set is in the installation groove (21), the Mike The acoustic aperture (40) of adopting of wind (4) is located in the installation groove (21) towards the side of the positioning convex (20), the convex It is corresponding to play the position of (20) with the installation groove (21) in the inner layer case (2), in the inner layer case (2) and described fixed It is provided with position raised (20) and is alignd the through hole (200) that connects with the acoustic aperture (40) of adopting.
- 2. the shell structure of built-in microphone according to claim 1, it is characterised in that the positioning convex (20) includes Main part and the positioning bar (201) extended outwardly by the weekly form of the main part, the through hole (200) are arranged at the master In body portion.
- 3. the shell structure of built-in microphone according to claim 1, it is characterised in that the microphone (4) is arranged at It is interference fitted in elastic seal cartridge (3) and with the elastic seal cartridge (3), the elastic sealing element is arranged at the installation groove (21) it is interference fitted in and with the installation groove (21), the acoustic aperture (40) of adopting of the microphone (4) is located at the elastic packing Cover in (3) towards the side of the positioning convex (20).
- 4. the shell structure of built-in microphone according to claim 3, it is characterised in that the elastic seal cartridge (3) is Silica gel sheath or elastic caoutchouc set.
- 5. the shell structure of built-in microphone according to claim 3, it is characterised in that also including stiffening plate (5) and FPC (6), the elastic seal cartridge (3) is the tubular structure that side is provided with opening, and the FPC (6) fits in the elastic seal cartridge (3) outer surface of the opening side on, the stiffening plate (5), the FPC (6) and the microphone (4) are sequentially fixed at one Rise.
- 6. the shell structure of built-in microphone according to claim 5, it is characterised in that the opening is located at the elasticity Side away from the positioning convex (20) direction on sealing shroud (3), it is provided with the elastic seal cartridge (3) and adopts sound with described The first acoustic aperture (30) of hole (40) alignment connection, the FPC (6) and stiffening plate (5) are fixed on the inner surface of the inner layer case (2) Above and towards the positioning convex (20) compress the elastic seal cartridge (3).
- 7. the shell structure of built-in microphone according to claim 6, it is characterised in that in the interior of the inner layer case (2) Hot molten column (220) is provided with surface, the hot molten column is configured as compressing the elasticity towards the positioning convex (20) The FPC (6), stiffening plate (5) hot melt are fixed in the inner layer case (2) during sealing shroud (3).
- 8. the shell structure of built-in microphone according to claim 5, it is characterised in that the opening is located at the elasticity Towards the side of the positioning convex (20) on sealing shroud (3), it is provided with the FPC (6) and stiffening plate (5) and adopts sound with described The second acoustic aperture (560) of hole (40) alignment connection, the stiffening plate (5) fit in the installation groove (21) through foam (7) Bottom surface, the foam (7) are set around second acoustic aperture (560), and the FPC (6), stiffening plate (5) are fixed on the installation The foam (7) is compressed on the bottom surface of groove (21) and towards the positioning convex (20).
- 9. the shell structure of built-in microphone according to claim 8, it is characterised in that in the installation groove (21) Bottom surface is provided with hot molten column (23), and the hot molten column is configured as compressing the foam (7) towards the positioning convex (20) When by the FPC (6), stiffening plate (5) hot melt be fixed on the bottom surface of the installation groove (21).
- 10. a kind of electronic product, it is characterised in that include the housing knot of the built-in microphone described in claim any one of 1-9 Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720389889.6U CN206640902U (en) | 2017-04-13 | 2017-04-13 | The shell structure and electronic product of a kind of built-in microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720389889.6U CN206640902U (en) | 2017-04-13 | 2017-04-13 | The shell structure and electronic product of a kind of built-in microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206640902U true CN206640902U (en) | 2017-11-14 |
Family
ID=60246356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720389889.6U Active CN206640902U (en) | 2017-04-13 | 2017-04-13 | The shell structure and electronic product of a kind of built-in microphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206640902U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110730397A (en) * | 2019-09-06 | 2020-01-24 | 歌尔股份有限公司 | Mobile terminal main board |
-
2017
- 2017-04-13 CN CN201720389889.6U patent/CN206640902U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110730397A (en) * | 2019-09-06 | 2020-01-24 | 歌尔股份有限公司 | Mobile terminal main board |
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