CN107249149A - Microphone assembly and electronic equipment - Google Patents
Microphone assembly and electronic equipment Download PDFInfo
- Publication number
- CN107249149A CN107249149A CN201710643267.6A CN201710643267A CN107249149A CN 107249149 A CN107249149 A CN 107249149A CN 201710643267 A CN201710643267 A CN 201710643267A CN 107249149 A CN107249149 A CN 107249149A
- Authority
- CN
- China
- Prior art keywords
- microphone
- flexible pcb
- pcb
- circuit board
- microphone assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000002184 metal Substances 0.000 claims description 11
- 230000008054 signal transmission Effects 0.000 claims description 3
- 229910000679 solder Inorganic materials 0.000 claims description 3
- 239000012634 fragment Substances 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 8
- IHIDFKLAWYPTKB-UHFFFAOYSA-N 1,3-dichloro-2-(4-chlorophenyl)benzene Chemical compound C1=CC(Cl)=CC=C1C1=C(Cl)C=CC=C1Cl IHIDFKLAWYPTKB-UHFFFAOYSA-N 0.000 description 25
- 230000006870 function Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000003321 amplification Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Abstract
The embodiment of the present invention provides a kind of microphone assembly, including microphone and flexible PCB, and the microphone is arranged on the flexible PCB, and is connected with the flexible PCB；The microphone offers acoustic aperture on the end face of the flexible PCB；Through hole is provided with the flexible PCB, the acoustic aperture of the through hole and the microphone is coaxially disposed, the microphone receives voice signal by the through hole.The embodiment of the present invention can shorten leading note transmission path.
Description
Technical field
The present invention relates to technical field of electronic equipment, more particularly to a kind of microphone assembly and electronic equipment.
Background technology
Microphone (Microphone, abbreviation MIC) is a kind of energy conversion that voice signal can be converted to electric signal
Element.Microphone is widely used in various electronic products.For example, when user is conversed using mobile terminal, Mike
Wind can pick up the voice of user, and be converted into electric signal, and the electric signal transmission is handled to processor.
The content of the invention
The embodiment of the present invention provides a kind of microphone assembly and electronic equipment, can shorten leading note transmission path.
The embodiment of the present invention provides a kind of microphone assembly, including microphone and flexible PCB, and the microphone is set
It is connected on the flexible PCB, and with the flexible PCB；
The microphone offers acoustic aperture on the end face of the flexible PCB；
Through hole is provided with the flexible PCB, the acoustic aperture of the through hole and the microphone is coaxially disposed, the wheat
Gram wind passes through the through hole and receives voice signal.
The embodiment of the present invention also provides a kind of electronic equipment, including housing and microphone assembly, the microphone assembly peace
Mounted in the enclosure interior, the microphone assembly is microphone assembly provided in an embodiment of the present invention.
Microphone element can be arranged on flexible PCB by microphone assembly provided in an embodiment of the present invention, soft at this
Through hole can be opened up on property circuit board, the through hole can be coaxially disposed with the acoustic aperture of microphone element, for voice signal to be passed
It is defeated to arrive microphone element.Because flexible PCB is thinner compared with printed circuit board (PCB) hardboard (Printed Circuit Board, PCB),
Therefore compared to PCB hardboards, microphone element, which is arranged on flexible PCB, can shorten leading note transmission path.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, makes required in being described below to embodiment
Accompanying drawing is briefly described.It should be evident that drawings in the following description are only some embodiments of the present invention, for
For those skilled in the art, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other attached
Figure.
Fig. 1 is the structural representation of electronic equipment provided in an embodiment of the present invention.
Fig. 2 is the sectional view of the P1-P1 lines provided in an embodiment of the present invention along in Fig. 1.
Fig. 3 is the first structural representation of microphone assembly provided in an embodiment of the present invention.
Fig. 4 is the first structural representation of printed circuit board (PCB) provided in an embodiment of the present invention.
Fig. 5 is second of structural representation of microphone assembly provided in an embodiment of the present invention.
Fig. 6 is the third structural representation of microphone assembly provided in an embodiment of the present invention.
Fig. 7 is the 4th kind of structural representation of microphone assembly provided in an embodiment of the present invention.
Fig. 8 is the connection diagram of flexible PCB provided in an embodiment of the present invention and printed circuit board (PCB).
Fig. 9 is the transmission schematic diagram of voice signal provided in an embodiment of the present invention.
Figure 10 is another structural representation of electronic equipment provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described.Obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, the every other implementation that those skilled in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise " are, based on orientation shown in the drawings or position relationship, to be for only for ease of
The description present invention and simplified description, rather than indicate or imply that the device or element of meaning must have specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are only used for
Purpose is described, and it is not intended that indicating or implying relative importance or the implicit quantity for indicating indicated technical characteristic.
Thus, " first " is defined, one or more feature can be expressed or be implicitly included to the feature of " second ".
In description of the invention, " multiple " are meant that two or more, unless otherwise specifically defined.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection or can mutually communicate；Can be joined directly together, can also be by between intermediary
Connect connected, can be connection or the interaction relationship of two elements of two element internals.For the ordinary skill of this area
For personnel, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it " under "
Can directly it be contacted including the first and second features, it is not direct contact but by it that can also include the first and second features
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " to include first special
Levy directly over second feature and oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " fisrt feature that includes are immediately below second feature and obliquely downward, or be merely representative of
Fisrt feature level height is less than second feature.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.In order to
Simplify disclosure of the invention, hereinafter the part and setting of specific examples are described.Certainly, they are only merely illustrative, and
And purpose does not lie in the limitation present invention.In addition, the present invention can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, between discussed various embodiments itself are not indicated and/or are set
Relation.In addition, the invention provides various specific techniques and material example, but those of ordinary skill in the art can be with
Recognize the application of other techniques and/or the use of other materials.
The embodiment of the present invention provides a kind of electronic equipment.The electronic equipment can be the equipment such as smart mobile phone, tablet personal computer.
Referring to Fig. 1, electronic equipment 100 can include cover plate 10, display screen 20, microphone assembly 30 and housing 40.
Wherein, cover plate 10 is installed on display screen 20, to cover display screen 20.Cover plate 10 can be transparent glass cover plate.
In certain embodiments, cover plate 10 can be the glass cover-plate being made of materials such as sapphires.
Display screen 20 is arranged on housing 40, to form the display surface of electronic equipment 100.Display screen 20 can include display
Region 20A and non-display area 20B.Viewing area 20A is used for the information such as display image, text.Non-display area 20B is not shown
Information.Non-display area 20B bottom can set the functional units such as fingerprint module, touch-control circuit.
Microphone assembly 30 is arranged on inside housing 40.Microphone assembly 30 can be used for pickup to be believed from outside sound
Number, and the voice signal is converted into electric signal, and by the processor of the electric signal transmission to electronic equipment.
Referring to Fig. 2, Fig. 2 is the sectional view along the P1-P1 lines in Fig. 1.In some embodiments, microphone assembly 30
Microphone 31 and flexible PCB 32 can be included.Microphone 31 can be arranged on flexible PCB 32, and with the flexibility
Circuit board 32 is connected.
In microphone 31 acoustic aperture 312 can be offered on the end face 311 of flexible PCB 32.
Through hole 33 can be provided with flexible PCB 32, the through hole 33 can be coaxial with the acoustic aperture 312 of microphone 31
Set.Microphone 31 can receive voice signal by the through hole 33.
For example, in one embodiment, microphone 31 can be with flexible circuit close to the end face 311 of flexible PCB 32
The laminating of first surface 321 of plate 32 is set.
It is understood that by by microphone 31 close to end face 311 and the flexible PCB 32 of flexible PCB 32
The laminating of first surface 321 is set, and can prevent voice signal from being revealed after by through hole 33.
In one embodiment, the internal diameter of through hole 33 can be more than the internal diameter of acoustic aperture 312.
For example, flexible PCB also includes the second surface relative with first surface.The shape of the cross section of through hole 33 can
Think circle, the internal diameter of through hole 33 can be gradually reduced along the direction of second surface towards the first surface of flexible PCB 32.
Referring to Fig. 3, for example, the shape of through hole 33 can be in truncated cone-shaped, the cross section of the acoustic aperture 312 of microphone can be
It is circular.Through hole 33 can be more than through hole 33 in first surface 321 in the internal diameter d1 of the second surface 322 of flexible PCB 32
Footpath d2.And through hole 33 can be more than the internal diameter d3 of the acoustic aperture 312 of microphone in the internal diameter d2 of first surface 321.
It is understood that because the internal diameter of through hole is more than the internal diameter of acoustic aperture, therefore through hole is shaped to internal diameter
The truncated cone-shaped being gradually reduced along the second surface of flexible PCB towards first surface, can be such that voice signal enters by through hole
It is less during microphone acoustic aperture to launch, so that voice signal can more enter microphone acoustic aperture.
Certainly, in other embodiments, the cross section of through hole 33 can also be ellipse or rectangle etc., as long as energy
Voice signal is enough set to be transferred to microphone acoustic aperture by the through hole.
In some embodiments, microphone assembly 30 can also include printed circuit board (PCB) (Printed Circuit
Board, PCB hardboard).The printed circuit board (PCB) can be connected with flexible PCB 32, for the electric signal for exporting microphone 31
It is transferred to the processor of electronic equipment.
The thickness of flexible PCB 32 can be less than printed circuit board (PCB).For example, the thickness of general printed circuit board (PCB) is 1.0 millis
Rice, and the thickness of flexible PCB 32 can be 0.08 millimeter.
Referring to Fig. 4, in one embodiment, one end of printed circuit board (PCB) 34 could be formed with breach 341, flexible electrical
Road plate 32 can be arranged in the breach 341.
Referring to Fig. 5, in one embodiment, the area equation that the area of flexible PCB 32 can be with breach 341.
That is, the bottom of flexible PCB 32 can align with the bottom of printed circuit board (PCB) 34.It should be noted that in Fig. 5 breach
There is gap between flexible PCB 32 and printed circuit board (PCB) 34, the gap is only intended in figure distinguish flexible PCB and print
Printed circuit board.And when implementing, flexible PCB can just fill the breach of printed circuit board (PCB).
Referring to Fig. 6, in another embodiment, the area of flexible PCB 32 can be more than the area of breach 341.
That is, the bottom of flexible PCB 32 can protrude from the bottom of printed circuit board (PCB) 34.
Referring to Fig. 7, the first pad 321 can be provided with some embodiments, on flexible PCB 32, and print
The second pad 341 can be provided with printed circuit board 34, then flexible PCB 32 and printed circuit board (PCB) 34 can pass through first
The pad 341 of pad 321 and second welds together.
For example, the quantity of the first pad set on flexible PCB 32 can be 4.Accordingly, printed circuit board (PCB) 34
The quantity of second pad of upper setting can also be 4.That is, the quantity of the second pad can be with the quantity of the 3rd pad
It is equal.
Referring to Fig. 8, the first sheet metal 322 can be provided with another embodiment, on flexible PCB 32, print
The second sheet metal 342 can also be provided with printed circuit board 34, the first sheet metal 322 and the second sheet metal 342 can pass through bullet
Piece 35 is connected, so that flexible PCB 32 and printed circuit board (PCB) 34 be linked together.
It is understood that the quantity of the first sheet metal 322 and the second sheet metal 342 can be multiple.
In one embodiment, the 3rd pad (not indicated in accompanying drawing), Mike can be provided with flexible PCB 32
Wind 31 can be by the 3rd pad solder on flexible PCB 32.It is understood that the quantity of the 3rd pad is at least
One.
In some embodiments, microphone 31 can be the microphone comprising power amplification circuit or not wrap
Microphone containing power amplification circuit.
It should be noted that microphone 31 is arranged on flexible PCB 32 in the present embodiment, due to flexible circuit
The thickness of plate is less than PCB hardboards, therefore is arranged on compared to by microphone on PCB hardboards, and voice signal exists in the present embodiment
Through hole is passed through by sound guide tube, this section of leading note transmission path for entering back into the acoustic aperture of microphone is reduced.Road is transmitted in leading note
In the case that footpath is shortened, voice signal quickly can enter in microphone.
As shown in figure 9, voice signal can successively pass through sound guide tube 36 and through hole 33, the acoustic aperture 312 of microphone is entered back into.Cause
This, is in the case where the path length of sound guide tube 36 is constant, because the thickness of flexible PCB is less than PCB hardboards, therefore it is soft
Property circuit board on the path length of through hole can be less than the path length of the through hole on PCB hardboards, it is therefore whole in the present embodiment
Leading note transmission path is reduced.
In the case where leading note transmission path shortens, voice signal is lost smaller in transmitting procedure.If using with active
The microphone of rate amplifying circuit, then microphone can receive more excellent voice signal.
In the case where leading note transmission path shortens, because voice signal quickly can enter in microphone, therefore this
Microphone in embodiment can also be the microphone without power amplification circuit, can so reduce Mike in electronic equipment
The cost of wind element.
With continued reference to Fig. 1.Wherein, housing 40 is used for the exterior contour for forming electronic equipment 100.The material of housing 40 can be with
For plastics or metal.Housing 40 can be integrally formed.
With reference to Figure 10, Figure 10 is another structural representation of electronic equipment 100 provided in an embodiment of the present invention.Electronic equipment
100 can also include antenna assembly 50, memory 60, power supply 70 and processor 80 etc..It will be understood by those skilled in the art that
The structure of the electronic equipment 100 shown in Figure 10 does not constitute the restriction to electronic equipment 100.Electronic equipment 100 can include
Than illustrating more or less parts, some parts or different parts arrangement are either combined.
Wherein, antenna assembly 50 can pass through wireless network and the network equipment (for example, server) or other electronic equipments
(for example, smart mobile phone) communicates, and completes and the information transmit-receive between the network equipment or other electronic equipments.
Memory 60 can be used for storage application program and data.Include executable in the application program that memory 60 is stored
Program code.Application program can constitute various functions module.Processor 90 is stored in the application journey of memory 60 by operation
Sequence, so as to perform various function application and data processing.In one embodiment, memory 60 can include random storage
Device and read-only storage.
The all parts that power supply 70 is used for electron equipment 100 are powered.In certain embodiments, power supply 70 can pass through electricity
Management system and processor 80 are logically contiguous, so as to realize management charging, electric discharge and power consumption pipe by power-supply management system
The functions such as reason.
Processor 80 is the control centre of electronic equipment 100.Processor 80 is entirely electric using various interfaces and connection
The various pieces of sub- equipment 100, by operation or perform and are stored in application program in memory 60, and call and be stored in
Data in reservoir 60, perform the various functions and processing data of electronic equipment 100, so as to carry out entirety to electronic equipment 100
Monitoring.
In addition, electronic equipment 100 can also include camera module, bluetooth module etc., it will not be repeated here.
Microphone assembly provided in an embodiment of the present invention and electronic equipment are described in detail above, it is used herein
Specific case is set forth to the principle and embodiment of the present invention, and the explanation of above example is only intended to help and understands
The present invention.Simultaneously for those skilled in the art, according to the thought of the present invention, in specific embodiments and applications
It will change, in summary, this specification content should not be construed as limiting the invention.
Claims (10)
1. a kind of microphone assembly, it is characterised in that including microphone and flexible PCB, the microphone is arranged on described soft
On property circuit board, and it is connected with the flexible PCB；
The microphone offers acoustic aperture on the end face of the flexible PCB；
Through hole is provided with the flexible PCB, the acoustic aperture of the through hole and the microphone is coaxially disposed, the microphone
Voice signal is received by the through hole.
2. microphone assembly according to claim 1, it is characterised in that the internal diameter of the through hole is more than the interior of the acoustic aperture
Footpath.
3. microphone assembly according to claim 2, it is characterised in that the flexible PCB includes first surface, with
And the second surface relative with the first surface, the shape of cross section of the through hole is circle, and the internal diameter of the through hole is along institute
The direction for stating second surface towards the first surface is gradually reduced.
4. microphone assembly according to claim 3, it is characterised in that the microphone assembly also includes printed circuit
Plate, the printed circuit board (PCB) is connected with the flexible PCB, and the thickness of the flexible PCB is less than the printed circuit board (PCB),
The printed circuit board (PCB) is used for the electric signal transmission that exports microphone to processor.
5. microphone assembly according to claim 4, it is characterised in that one end of the printed circuit board (PCB) is formed with scarce
Mouthful, the flexible PCB is arranged in the breach.
6. microphone assembly according to claim 5, it is characterised in that the area of the flexible PCB and the breach
Area equation, or the flexible PCB area be more than the breach area.
7. microphone assembly according to claim 5, it is characterised in that the flexible PCB is provided with the first pad,
And the printed circuit board (PCB) is provided with the second pad, the flexible PCB and the printed circuit board (PCB) pass through first pad
With second pad solder.
8. microphone assembly according to claim 5, it is characterised in that the flexible PCB is provided with the first metal
Piece, the printed circuit board (PCB) is provided with the second sheet metal, and first sheet metal is connected with second sheet metal by shell fragment,
So that the flexible PCB and the printed circuit board (PCB) to be connected with each other.
9. microphone assembly according to claim 1, it is characterised in that the flexible PCB is provided with the 3rd pad,
The microphone is by the 3rd pad solder on the flexible PCB.
10. a kind of electronic equipment, it is characterised in that the electronic equipment includes housing and microphone assembly, the microphone group
Part is arranged on the enclosure interior, and the microphone assembly is any described microphone assembly of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710643267.6A CN107249149A (en) | 2017-07-31 | 2017-07-31 | Microphone assembly and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710643267.6A CN107249149A (en) | 2017-07-31 | 2017-07-31 | Microphone assembly and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107249149A true CN107249149A (en) | 2017-10-13 |
Family
ID=60012157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710643267.6A Pending CN107249149A (en) | 2017-07-31 | 2017-07-31 | Microphone assembly and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107249149A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108055603A (en) * | 2017-11-30 | 2018-05-18 | 努比亚技术有限公司 | Microphone and mobile terminal |
| CN111541983A (en) * | 2020-04-30 | 2020-08-14 | 荣成歌尔电子科技有限公司 | Test apparatus and test system |
| WO2022165870A1 (en) * | 2021-02-08 | 2022-08-11 | 深圳市启明云端科技有限公司 | Display panel structure applicable in 86 box |
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Country or region after: China Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Applicant after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Applicant before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Country or region before: China |
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Application publication date: 20171013 |