CN207652694U - Surface mounted microphone - Google Patents
Surface mounted microphone Download PDFInfo
- Publication number
- CN207652694U CN207652694U CN201721875218.7U CN201721875218U CN207652694U CN 207652694 U CN207652694 U CN 207652694U CN 201721875218 U CN201721875218 U CN 201721875218U CN 207652694 U CN207652694 U CN 207652694U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- vibrating diaphragm
- shell
- connection sheet
- plate
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of surface mounted microphone, including shell, is located at bottom panel and is equipped with sound access aperture；Parallel plate capacitor component is provided in shell accommodating cavity, parallel plate capacitor component includes pole plate, vibrating diaphragm and the gasket that pole plate is isolated with vibrating diaphragm, and also incorporates becket in the lower surface of vibrating diaphragm；Connection sheet is installed, connection sheet is equipped with through-hole, and a cavity is formed between connection sheet and enclosure bottom plate, and sound access aperture is connected to cavity between vibrating diaphragm and the bottom panel of shell；The other end opposite with enclosure bottom plate is equipped with circuit board in shell accommodating cavity, and circuit board is electrically connected by grating ring with pole plate；The lower surface of circuit board is equipped with filter element and FET, and multiple " T " shaped rivets are provided on circuit board；Insulating component is installed between circuit board and becket.The utility model manufacturing cost is cheap, with the mechanical connection of external circuitry plate and be electrically connected firm, and can prevent the suction of patch suction nozzle from acting directly on vibrating diaphragm.
Description
Technical field
The utility model is related to a kind of microphone more particularly to a kind of surface mounted microphones.
Background technology
Patch type microphone is the microphone manufactured using surface mounting technology (SMT).SMT is current Electronic Assemblies
A kind of most popular technology and technique in industry.SMT technical process mainly has three big basic operational steps：Coating, attachment, weldering
It connects.Wherein, mounted effect is by surface-assembled component accurately installation all fixed positions of PCB, and device therefor is patch
Machine.Chip mounter configures after production line dispenser or screen process press, puts surface-assembled component by vacuum slot suction, leads to
It crosses and moves mounting head Surface Mount Component is accurately placed on PCB pads.
Existing traditional patch type microphone is in production operation, when the suction nozzle of chip mounter makees suction-operated to microphone,
For the suction nozzle of chip mounter by being adsorbed on the bottom panel of microphone, the aperture on bottom panel corresponds to vibrating diaphragm, so, suction
Effect can act directly on vibrating diaphragm diaphragm, be easily damaged vibrating diaphragm, influence microphone products quality；In addition, existing patch
The phenomenon that chip microphone and the electrical connection setting of external circuitry plate fall off is very serious, constrains the further development of product, especially
It is digital product because its number of pads is more, single bonding pad area is smaller, however product size do not allow but plus
Greatly, the aggravation of problem is further caused.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of surface mounted microphone, system
Make it is of low cost, with the mechanical connection of external circuitry plate and be electrically connected firm, and can prevent the suction of patch suction nozzle from directly acting on
On vibrating diaphragm.
The technical solution of the utility model is as follows：A kind of surface mounted microphone, including：
Shell with accommodating cavity, the bottom panel for being located at the shell are equipped with sound access aperture；
Parallel plate capacitor component is provided in the shell accommodating cavity and above the enclosure bottom plate, it is described flat
Andante capacitance component includes pole plate, vibrating diaphragm and the gasket that pole plate is isolated with vibrating diaphragm, and the lower surface of the vibrating diaphragm also
It is combined with becket；
Connection sheet is installed, the connection sheet is equipped with through-hole, and the company between the vibrating diaphragm and the bottom panel of shell
A cavity is formed between contact pin and the enclosure bottom plate, the sound access aperture is connected to the cavity, the connection sheet
Middle part it is convex, and the through-hole is located on crowning, and the crowning is not contacted with the vibrating diaphragm；
The other end opposite with the enclosure bottom plate is equipped with circuit board, the circuit board in the shell accommodating cavity
It is electrically connected with the pole plate by grating ring；
The lower surface of the circuit board is equipped with filter element and FET, and multiple " T " shaped rivetings are provided on the circuit board
The big end of nail, the rivet is placed in the outer surface formation pad of the circuit board, and the small end of the rivet passes through the electricity
Road plate is formed with blocking portion and is contacted with the inner surface of the circuit board；
It is also equipped with insulating component between the circuit board and becket, makes the shell and in the insulating component
The grating ring of side is electrically insulated.
In the above-mentioned technical solutions, the rivet is copper rivet.
In the above-mentioned technical solutions, the surface of the rivet is coated with nickel layer and layer gold successively from inside to outside.
Compared with the existing technology, the beneficial effects of the utility model are：
1) due to being equipped with connection sheet between vibrating diaphragm and the bottom panel of shell, connection sheet is equipped with through-hole, and connection sheet
A cavity is formed between the enclosure bottom plate, sound access aperture is connected to cavity, and the middle part of connection sheet is convex, and
Through-hole is located on crowning, and crowning is not contacted with vibrating diaphragm, when voice signal is enterprising fashionable from enclosure bottom plate, by cavity and
Through-hole is finally applied on vibrating diaphragm, and still, when the adsorption force of chip mounter suction nozzle is on shell bottom panel, suction is straight
It connects and has been applied in connection sheet, rather than act directly on vibrating diaphragm, so as to avoid vibrating diaphragm because being deformed caused by adsorption capacity；
2) by the way that multiple " T " shaped rivets are arranged on circuit boards, the big end of rivet is placed in the outer surface shape of circuit board
At pad, the small end of rivet is formed with blocking portion across circuit board and is contacted with the inner surface of circuit board, and manufacturing cost is cheap,
With the mechanical connection of external circuitry plate and be electrically connected firm, product reliability increases.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Specific implementation mode
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Referring to Fig. 1, a kind of surface mounted microphone of the utility model, includes the shell 1 with accommodating cavity 11, is located at
The bottom panel 12 of shell 1 is equipped with sound access aperture 13；It is arranged in shell accommodating cavity 11 and above enclosure bottom plate 12
There are parallel plate capacitor component, the parallel plate capacitor component to include pole plate 21, vibrating diaphragm 22 and pole plate 21 is isolated with vibrating diaphragm 22
Gasket 23, and also incorporate becket 24 in the lower surface of vibrating diaphragm 22；It is equipped between vibrating diaphragm 22 and the bottom panel of shell 1
Connection sheet 3, connection sheet 3 be equipped with through-hole 31, and between connection sheet 3 and enclosure bottom plate 12 formed a cavity 32, sound into
Enter hole 13 to be connected to cavity 32, the middle part of connection sheet 3 is convex, and through-hole 31 is located on crowning 33, crowning 33 with shake
Film 22 does not contact；The other end opposite with enclosure bottom plate 12 is equipped with circuit board 4 in shell accommodating cavity 11, and circuit board 4 is logical
Grating ring 5 is crossed to be electrically connected with pole plate 21；The lower surface of circuit board 4 is equipped with filter element 6 and FET7, is provided on circuit board 4 more
The big end 81 of a " T " shaped rivet 8, rivet 8 is placed in the outer surface formation pad of circuit board 4, and the small end of rivet 8 passes through electricity
Road plate 4 is formed with blocking portion 82 and is contacted with the inner surface of circuit board 4；Insulation is also equipped between circuit board 4 and becket 24
Component 9 makes shell 1 and is electrically insulated positioned at the grating ring 5 of 9 inside of insulating component.
By the way that multiple " T " shaped rivets 8 are arranged on the circuit board 4, the big end 81 of rivet 8 is placed in the appearance of circuit board 4
Face forms pad, and the small end of rivet 8 is formed with blocking portion 82 across circuit board 4 and is contacted with the inner surface of circuit board 4, manufactures
It is of low cost, and the mechanical connection of external circuitry plate and it is electrically connected firm, increases product reliability, in the present embodiment, the riveting
Nail 8 preferably uses extensibility well and the copper product of electric conductivity and good weldability is made, of low cost, the upper end of rivet 8
Portion 81 can be very good to complete the effect of pad, while rivet 8 is inserted into inside circuit board 4, is tightly combined therebetween, can
Good by property, the blocking portion 82 formed at 8 tail portion of rivet further enhances the bond strength between circuit board 4, by rivet 8
Upper end 81 as pad and electronic product main circuit board welding after, the weld strength between pad and main circuit board is substantially
It improves, the stability and Mechanical Reliability being electrically connected between microphone and main circuit board all increase substantially.
In order to further increase the solderability of rivet, can also the surface of rivet 8 be coated with successively from inside to outside nickel layer and
Layer gold, to further increase the solderability and oxidative resistance of rivet.
Due to being equipped with connection sheet 3 between vibrating diaphragm 22 and the bottom panel of shell 1, connection sheet 3 is equipped with the utility model
Through-hole 31, and a cavity 32 is formed between connection sheet 3 and enclosure bottom plate 12, sound access aperture 13 is connected to cavity 32, even
The middle part of contact pin 3 is convex, and through-hole 31 is located on crowning 33, and crowning 33 is not contacted with vibrating diaphragm 22, works as voice signal
When entering microphone from the sound access aperture 13 of enclosure bottom plate 12, then vibrating diaphragm 22 is applied to by the through-hole 31 in connection sheet 3.
When the vacuum slot of chip mounter, which starts to inhale, puts the assembling component of microphone, vacuum slot adsorbs the bottom surface of microphone case
Then plate, first adsorption capacity act on the appearance between bottom panel 12 and connection sheet 3 by the sound access aperture 13 on bottom panel 12
It in chamber 32, is finally applied on the crowning 33 of connection sheet 3, avoids and act directly on vibrating diaphragm 22, to protect vibrating diaphragm
22。
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all in this practicality
All any modification, equivalent and improvement etc., should be included in the guarantor of the utility model made by within novel spirit and principle
Within the scope of shield.
Claims (3)
1. a kind of surface mounted microphone, which is characterized in that including：
Shell with accommodating cavity, the bottom panel for being located at the shell are equipped with sound access aperture；
It is provided with parallel plate capacitor component, the parallel-plate in the shell accommodating cavity and above the enclosure bottom plate
Capacitance component includes pole plate, vibrating diaphragm and the gasket that pole plate is isolated with vibrating diaphragm, and the lower surface of the vibrating diaphragm herein in connection with
There is becket；
Connection sheet is installed, the connection sheet is equipped with through-hole, and the connection sheet between the vibrating diaphragm and the bottom panel of shell
A cavity is formed between the enclosure bottom plate, the sound access aperture is connected to the cavity, in the connection sheet
Portion is convex, and the through-hole is located on crowning, and the crowning is not contacted with the vibrating diaphragm；
The other end opposite with the enclosure bottom plate is equipped with circuit board in the shell accommodating cavity, and the circuit board passes through
Grating ring is electrically connected with the pole plate；
The lower surface of the circuit board is equipped with filter element and FET, and multiple " T " shaped rivets are provided on the circuit board,
The outer surface that the big end of the rivet is placed in the circuit board forms pad, and the small end of the rivet passes through the circuit board
It is formed with blocking portion and is contacted with the inner surface of the circuit board；
It is also equipped with insulating component between the circuit board and becket, makes the shell and on the inside of the insulating component
Grating ring is electrically insulated.
2. surface mounted microphone according to claim 1, it is characterised in that：The rivet is copper rivet.
3. surface mounted microphone according to claim 1, it is characterised in that：The surface of the rivet from inside to outside according to
It is secondary to be coated with nickel layer and layer gold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721875218.7U CN207652694U (en) | 2017-12-27 | 2017-12-27 | Surface mounted microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721875218.7U CN207652694U (en) | 2017-12-27 | 2017-12-27 | Surface mounted microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207652694U true CN207652694U (en) | 2018-07-24 |
Family
ID=62876460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721875218.7U Active CN207652694U (en) | 2017-12-27 | 2017-12-27 | Surface mounted microphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207652694U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429918A (en) * | 2019-08-27 | 2019-11-08 | 深圳市双平电源技术有限公司 | A kind of transformer, capacitor and inductance engage the structure to form series resonance |
| CN111048934A (en) * | 2019-11-21 | 2020-04-21 | 歌尔股份有限公司 | Airflow sensor |
-
2017
- 2017-12-27 CN CN201721875218.7U patent/CN207652694U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429918A (en) * | 2019-08-27 | 2019-11-08 | 深圳市双平电源技术有限公司 | A kind of transformer, capacitor and inductance engage the structure to form series resonance |
| CN111048934A (en) * | 2019-11-21 | 2020-04-21 | 歌尔股份有限公司 | Airflow sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9271435B2 (en) | Miniature microphone, protection frame thereof and method for manufacturing the same | |
| CN109951958B (en) | Ultrathin surface-mounted airflow sensor | |
| CN207652694U (en) | Surface mounted microphone | |
| CN201138866Y (en) | Silicon microphone with improved structure | |
| CN209117240U (en) | A kind of airflow sensing sensor | |
| CN202999298U (en) | Surface mount type non-combustion type electronic cigarette controller | |
| CN210093675U (en) | Ultrathin surface-mounted airflow sensor | |
| CN110769357A (en) | Microphone packaging structure adopting lead frame plastic shell | |
| JP2012222124A (en) | Capacitor with insulating coating and manufacturing method therefor | |
| CN201234343Y (en) | Micro capacitor type microphone shielding construction | |
| CN201450592U (en) | Miniature microphone with circuit board frame structure | |
| CN201226593Y (en) | Silicon microphone capable of being welding on two sides | |
| CN203826667U (en) | Waterproof earphone connector and mobile terminal with same | |
| CN204179345U (en) | A kind of waterproof connector structure of electronic product | |
| CN201011742Y (en) | Improved silicon microphone | |
| CN209117091U (en) | A kind of airflow sensing sensor | |
| CN106504735A (en) | One kind is exempted to weld high frequency high sound pressure buzzer and production method | |
| CN207304804U (en) | Loudspeaker installing structure and its intelligent watch | |
| CN204362976U (en) | SMD non-combustion-type electronic cigarette controller | |
| CN201167414Y (en) | Miniature capacitance microphone | |
| CN101257737B (en) | Miniature capacitance type microphone | |
| CN205082045U (en) | Take circuit plate structure of electromagnetic shield membrane | |
| CN203368752U (en) | Mems microphone | |
| CN201509308U (en) | Minitype paster capacitance type microphone | |
| CN211297161U (en) | Surface-mounted electronic component |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |