CN209151370U - A kind of micro-electro-mechanical microphone and electronic equipment - Google Patents
A kind of micro-electro-mechanical microphone and electronic equipment Download PDFInfo
- Publication number
- CN209151370U CN209151370U CN201920071585.4U CN201920071585U CN209151370U CN 209151370 U CN209151370 U CN 209151370U CN 201920071585 U CN201920071585 U CN 201920071585U CN 209151370 U CN209151370 U CN 209151370U
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- China
- Prior art keywords
- sound hole
- micro
- electro
- vibrating diaphragm
- circuit board
- 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.)
- Expired - Fee Related
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract description 3
- 230000008018 melting Effects 0.000 abstract description 3
- 238000012797 qualification Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Abstract
The utility model relates to the production of micro-electro-mechanical microphone and applied technical field more particularly to a kind of micro-electro-mechanical microphones and electronic equipment.Micro-electro-mechanical microphone includes circuit board and vibrating diaphragm, the side of the circuit board is provided with ground loop, multiple sound hole are provided on the circuit board, the sound hole is distributed in the inner hole of the ground loop, the vibrating diaphragm is mounted on the other side of the circuit board, the setting of vibrating diaphragm described in the sound hole face.Multiple sound hole are set by sound hole, do not reduce overall radio reception area, the aperture of sound hole becomes smaller, and dust, steam etc. are not easily accessible sound hole, and then pollutes and influence vibrating diaphragm, can greatly increase the service life of microphone.During in full-automatic paster reflow process and melting down, scaling powder is hardly splashed into sound hole, and vibrating diaphragm is not damaged, and can be improved the qualification rate of product.
Description
Technical field
The utility model relates to the production of micro-electro-mechanical microphone and applied technical field more particularly to a kind of micro electronmechanical Mikes
Wind and electronic equipment.
Background technique
As intelligent voice system and consumer electronics are using more and more extensive and universal, for pick-up element in system
The use of microphone is also more and more.The micro-electro-mechanical microphone produced by manufacture of semiconductor is because of its performance and usable surface
Mounting technology (Surface Mount Technology abbreviation SMT) patch, it is easier to realize fully-automatic production, make it in Mike
The occupation rate of fengshi field rises year by year, and carries on the back the set-up mode into the Sensor face sound hole of sound micro-electro-mechanical microphone, makes its sound
Performance is learned to be substantially better than advance sound and more praised highly by market.
It carries on the back into a ground loop is provided on the circuit board of sound microphone, microphone is provided with a sound hole.It is located at copper
In the inner hole of ring, in order to guarantee being relatively large in diameter for radio reception area sound hole, make because carrying on the back its structure design reasons into sound microphone
For vibrating diaphragm more fragile directly against sound hole, such vibrating diaphragm is just highly susceptible to extraneous dust, sundries and steam in Sensor
It influences, especially in full-automatic paster reflow process, the sound hole of microphone can return in the encirclement of tin cream scaling powder
During furnace scaling powder may can splash into sound hole, these can all cause vibrating diaphragm is impaired to make microphone functionality occur to ask
Topic, can not work normally.
Therefore, a kind of micro-electro-mechanical microphone and electronic equipment are needed, to solve the above technical problems.
Utility model content
The purpose of this utility model is to provide a kind of micro-electro-mechanical microphone and electronic equipment, microphone is with higher
Service life.
For this purpose, the utility model uses following technical scheme:
On the one hand, a kind of micro-electro-mechanical microphone is provided comprising the side of circuit board and vibrating diaphragm, the circuit board is provided with
Ground loop is provided with multiple sound hole on the circuit board, and the sound hole is distributed in the inner hole of the ground loop, the vibration
Film is mounted on the other side of the circuit board, the setting of vibrating diaphragm described in the sound hole face.
Preferably, the micro-electro-mechanical microphone further includes housing, and the housing, which is provide with, to be placed in the circuit board and be set to institute
The side of vibrating diaphragm is stated, the vibrating diaphragm is located in the chamber of housing.
Preferably, the micro-electro-mechanical microphone further includes amplifier, is set on the circuit board and is located at the cover
In the chamber of shell.
Preferably, multiple sound hole are distributed in the inner hole of the ground loop.
Preferably, the quantity of the sound hole is seven, and one of sound hole is located in the inner hole of the ground loop
The heart, remaining six described sound hole are arranged around the center.
Preferably, the diameter of the sound hole is not more than 0.12mm.
Preferably, the material of the ground loop is copper.
Preferably, the ground loop surface gold-plating.
On the other hand, a kind of electronic equipment is provided comprising micro-electro-mechanical microphone as described above.
The utility model has the beneficial effects that setting multiple sound hole for sound hole in the utility model, do not reduce overall
The aperture of radio reception area, sound hole becomes smaller, and dust, steam etc. are not easily accessible sound hole, and then pollutes and influence vibrating diaphragm, Neng Gouji
The earth increases the service life of microphone.During in full-automatic paster reflow process and melting down, scaling powder is hardly
It is splashed into sound hole, vibrating diaphragm is not damaged, and can be improved the qualification rate of product.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of micro-electro-mechanical microphone provided by the utility model；
Fig. 2 is the cross-sectional view of micro-electro-mechanical microphone provided by the utility model.
In figure: 1, circuit board；11, sound hole；2, ground loop；3, vibrating diaphragm；4, housing；5, amplifier.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
As depicted in figs. 1 and 2, present embodiment discloses a kind of micro-electro-mechanical microphones comprising circuit board 1, vibrating diaphragm 3, cover
Shell 4 and amplifier 5.
The side of circuit board 1 is provided with ground loop 2, and ground loop 2 and circuit board 1 are integrally machined molding, and ground loop 2 is for connecting
Ground line, the material of ground loop 2 is copper and surface gold-plating is handled.Vibrating diaphragm 3 is mounted on the other side of circuit board 1, ground loop 2 with
The setting of 3 face of vibrating diaphragm.Multiple sound hole 11 are provided on circuit board 1, sound hole 11 is distributed in the inner hole of ground loop 2, radio reception
The setting of 11 face vibrating diaphragm 3 of hole, i.e., one end of sound hole 11 is located in the inner hole of ground loop 2, other end face vibrating diaphragm 3.Sound hole
11 are distributed in the inner hole of ground loop 2, and the quantity as the sound hole 11 in preferred the present embodiment is seven, six of them annular
Uniformly distributed, another is located at other six centers.The diameter of sound hole 11 is not more than 0.12mm, as in preferred the present embodiment
The diameter of sound hole 11 is 0.1mm.
Housing 4, which is provide with, is placed in the side that circuit board 1 is set to vibrating diaphragm 3, and vibrating diaphragm 3 is located in the chamber of housing 4.Amplifier 5
It is set on circuit board 1 and is located in the chamber of housing 4, the reception of vibrating diaphragm 3 is transmitted through the sound come from sound hole 11 and vibrates, so
It is amplified afterwards by amplifier 5, then passes to chip, form electric signal.
Multiple sound hole 11 are set by sound hole, do not reduce overall radio reception area, the aperture of sound hole 11 becomes smaller, powder
Dirt, steam etc. are not easily accessible sound hole 11, and then pollute and influence vibrating diaphragm 3, can greatly increase the service life of microphone.
During in full-automatic paster reflow process and melting down, scaling powder is hardly splashed into sound hole 11, and vibrating diaphragm 3 will not
It is impaired, it can be improved the qualification rate of product.
The present embodiment also discloses a kind of electronic equipment comprising micro-electro-mechanical microphone as described above.
Obviously, the above embodiments of the present invention is used for the purpose of clearly illustrating examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (9)
1. a kind of micro-electro-mechanical microphone comprising circuit board (1) and vibrating diaphragm (3), which is characterized in that the one of the circuit board (1)
Side is provided with ground loop (2), is provided with multiple sound hole (11) on the circuit board (1), and the sound hole (11) is distributed in institute
In the inner hole for stating ground loop (2), the vibrating diaphragm (3) is mounted on the other side of the circuit board (1), sound hole (11) face
Vibrating diaphragm (3) setting.
2. micro-electro-mechanical microphone according to claim 1, which is characterized in that the micro-electro-mechanical microphone further includes housing
(4), the housing (4), which is provide with, is placed in the side that the circuit board (1) is set to the vibrating diaphragm (3), and the vibrating diaphragm (3) is located at cover
In the chamber of shell (4).
3. micro-electro-mechanical microphone according to claim 2, which is characterized in that the micro-electro-mechanical microphone further includes amplifier
(5), it is set on the circuit board (1) and is located in the chamber of the housing (4).
4. micro-electro-mechanical microphone according to claim 1, which is characterized in that multiple sound hole (11) are distributed in described
In the inner hole of ground loop (2).
5. micro-electro-mechanical microphone according to claim 1, which is characterized in that the quantity of the sound hole (11) is seven,
One of sound hole (11) is located at the center of the inner hole of the ground loop (2), remaining six sound hole (11) surround
Center setting.
6. micro-electro-mechanical microphone according to claim 1, which is characterized in that the diameter of the sound hole (11) is not more than
0.12mm。
7. micro-electro-mechanical microphone according to claim 1, which is characterized in that the material of the ground loop (2) is copper.
8. micro-electro-mechanical microphone according to claim 7, which is characterized in that ground loop (2) surface gold-plating.
9. a kind of electronic equipment, which is characterized in that it includes such as micro-electro-mechanical microphone of any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920071585.4U CN209151370U (en) | 2019-01-16 | 2019-01-16 | A kind of micro-electro-mechanical microphone and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920071585.4U CN209151370U (en) | 2019-01-16 | 2019-01-16 | A kind of micro-electro-mechanical microphone and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209151370U true CN209151370U (en) | 2019-07-23 |
Family
ID=67291407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920071585.4U Expired - Fee Related CN209151370U (en) | 2019-01-16 | 2019-01-16 | A kind of micro-electro-mechanical microphone and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209151370U (en) |
-
2019
- 2019-01-16 CN CN201920071585.4U patent/CN209151370U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190723 |