CN207531073U - Microphone device - Google Patents
Microphone device Download PDFInfo
- Publication number
- CN207531073U CN207531073U CN201721588807.7U CN201721588807U CN207531073U CN 207531073 U CN207531073 U CN 207531073U CN 201721588807 U CN201721588807 U CN 201721588807U CN 207531073 U CN207531073 U CN 207531073U
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- CN
- China
- Prior art keywords
- frame
- microphone device
- fixed
- side wall
- hole
- 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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Abstract
The utility model provides a kind of microphone device, including frame, it is fixed on the vibrational system of the frame and drives the magnetic circuit system of the vibrational system vibration, the frame, the vibrational system and the magnetic circuit system surround back cavity jointly, the magnetic circuit system includes the magnetic bowl for being fixed on the frame, the vibrational system is fixed on one end of the frame, the magnetic bowl is fixed on the frame other end opposite with the vibrational system, the magnetic bowl includes bottom wall, it is bent by the bottom wall towards the vibrational system direction and extends and abut the side wall for being fixed on the frame, the side wall is provided through at least one through-hole, the through-hole is connected with the back cavity；The microphone device further includes the breathable barrier for being covered on the through-hole completely and being fixed on the side wall.Compared with the relevant technologies, the microphone device good reliability and acoustical behavior of the utility model are excellent.
Description
【Technical field】
The utility model is related to acoustic-electric field more particularly to a kind of microphone devices for applying to portable electronic product.
【Background technology】
With the arrival in mobile Internet epoch, the quantity of Intelligent mobile equipment constantly rises.And in numerous mobile equipment
Among, mobile phone is undoubtedly most common, most portable mobile terminal device.At present, the function of mobile phone is extremely various, one of them is just
It is the music function of high-quality, therefore, the microphone device for playing sound is widely applied Intelligent mobile equipment till now
Among.
The microphone device of the relevant technologies includes frame, the vibrational system for being fixed on the frame and the driving vibration
The magnetic circuit system of system vibration, the frame, vibrational system and the magnetic circuit system surround back cavity, the magnetic circuit system packet jointly
The magnetic bowl for being fixed on the frame is included, the magnetic bowl includes bottom wall and the side extended from the bottom wall to the bending of vibrational system direction
Wall.The microphone device of the relevant technologies opens up leak holes and damping piece lid is set to set in the side wall of frame or the bottom wall of magnetic bowl to be fixed on
The leak holes, to realize sound pressure equalisation.
However, in microphone device in the relevant technologies in assembling, when the side wall of the frame is excessively high or external devices are straight
When connecing bottom wall outer of the pressure set on the magnetic bowl, it be easy to cause the leak holes and blocks and the air-flow in back cavity is caused to have some setbacks, from
And make the microphone device low-frequency distortion, influence its acoustical behavior.
Therefore, a kind of new microphone device must be provided by, which having in fact, solves above-mentioned technical problem.
【Utility model content】
The purpose of this utility model is to provide a kind of good reliability and the excellent microphone devices of acoustical behavior.
In order to achieve the above objectives, the utility model provides a kind of microphone device, including frame, is fixed on shaking for the frame
Dynamic system and the magnetic circuit system for driving the vibrational system vibration, the frame, the vibrational system and the magnetic circuit system are total to
With back cavity is surrounded, the magnetic circuit system includes the magnetic bowl for being fixed on the frame, and the vibrational system is fixed on the frame
One end, the magnetic bowl are fixed on the frame other end opposite with the vibrational system, and the magnetic bowl includes bottom wall, by described
Bottom wall, which bends to extend and abut towards the vibrational system direction, is fixed on the side wall of the frame, the side wall be provided through to
A few through-hole, the through-hole are connected with the back cavity；The microphone device further includes is covered on the through-hole and fixation completely
In the breathable barrier of the side wall.
Preferably, the through-hole includes two and spaced setting.
Preferably, center symmetric setting of two through-holes about the microphone device.
Preferably, the microphone device is rectangular, and the side wall includes two long side walls being oppositely arranged and is oppositely arranged
Two short side walls, two through-holes are respectively arranged on two short side walls.
Preferably, the arc-shaped structure of the short side wall.
Preferably, the short side wall is equipped with the container formed to inward side to recess from its outside, and the through-hole is located at
In the container, the breathable barrier, which is sticked, to be fixed in the container.
Preferably, the side of the short side wall for being connected to the magnetic bowl of the frame is equipped with allowing for ecto-entad recess
Position slot, the breathable barrier is sticked simultaneously to be fixed in the container and the recessing groove.
Compared with the relevant technologies, the microphone device of the utility model sets logical through thereon on the side wall of the magnetic bowl
Hole, and pass through and the breathable barrier is set to be covered on the through-hole completely and forms fixation, the position of the through-hole avoids
The side of the frame and the bottom wall of the magnetic bowl, so as to effectively evaded assembling when because the side of the frame is excessively high or described in
The phenomenon that bottom wall of magnetic bowl is set and led to its leak holes the back cavity air-flow is not smooth after being blocked by other component pressures, improves described
The reliability of microphone device；The damping size of the back cavity is effectively adjusted by the breathable barrier to improve the acoustical generator
The low-frequency distortion of part improves the acoustical behavior of the microphone device.
【Description of the drawings】
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Other attached drawings are obtained, wherein：
Fig. 1 is the dimensional structure diagram of the utility model microphone device；
Fig. 2 is the stereochemical structure decomposed schematic diagram of the utility model microphone device.
【Specific embodiment】
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that described embodiment is only the part of the embodiment rather than whole of the utility model
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
The all other embodiment obtained, shall fall within the protection scope of the present invention.
It please join shown in Fig. 1-2, the utility model provides a kind of microphone device 100, including frame 1, is individually fixed in frame 1
Vibrational system 2 and magnetic circuit system 3 and breathable barrier 4.
For the magnetic circuit system 3 for driving 2 vibration sounding of vibrational system, the vibrational system 2 is fixed on the basin
One end of frame 1.The frame 1, the vibrational system 2 and the magnetic circuit system 3 surround back cavity 10 jointly, for promoting the hair
The frequency acoustic performance of acoustic device 100.
The magnetic circuit system 3 includes the magnetic bowl 31 for being fixed on the frame 1.
The magnetic bowl 31 includes bottom wall 311, is bent extension towards 2 direction of magnetic circuit system by the bottom wall 311 and abutted
At least one through-hole 313 for being fixed on the side wall 312 of the frame 1 and being set through the side wall 312.The through-hole 313 with
The back cavity 10 connects.
The through-hole 313 is set to the side wall 312, avoids the side of the frame 1 and the bottom of the magnetic bowl 31
Wall 311, because the side of the frame 1 is excessively high or the bottom wall 311 of the magnetic bowl 31 is by other portions when being assembled so as to effectively evade
The phenomenon that part pressure sets and leads to its leak holes 10 air-flow of back cavity is not smooth after being blocked, improve the microphone device 100 can
By property.
In present embodiment, the through-hole 313 includes two and spaced setting, certainly, the quantity of the through-hole 313
It is not limited to this.
More preferably, center symmetric setting of two through-holes 313 about the microphone device 100, the symmetrical structure make
The adjusting of the acoustic pressure in the back cavity 10 is obtained more to balance.Certainly, two through-holes 313 can also be set on adjacent two side 312,
This is also feasible.
Specifically, the microphone device 100 is rectangular, the side wall 312 includes two long side wall 312a being oppositely arranged
With two short side wall 312b being oppositely arranged, two through-holes 313 are respectively arranged on two short side wall 312b.
In present embodiment, the arc-shaped structures of short side wall 312b.Arcuate structure causes the through-hole 313 to be formed effectively
It steps down, is not easy to be blocked by other components of the bottom surface of the microphone device 100 and side, reliability is more excellent.
The short side wall 312b is equipped with the container 3121 formed to inward side to recess from its outside, the through-hole 313
In the container 3121.
It should be noted that the microphone device 100 is not limited to rectangle or round or other shapes, this is all
Feasible, the principle that through-hole 313 is set is the same.
The breathable barrier 4 is covered on the through-hole 313 and forms fixation completely, for stop foreign particle into
Enter the back cavity 10, protect the reliability of the microphone device 100；Allow the air-flow and free surrounding space in the back cavity 10 simultaneously
Circulation, changes the damping size of the back cavity 10 by the breathable barrier 4, and then improve its low-frequency distortion, improves acoustics
Performance.In addition, the through-hole 313, which can be additionally used in the back cavity 10, balances acoustic pressure.
It in present embodiment, is fixed in the container 3121 specifically, the breathable barrier 4 is sticked, saves institute
State the occupied space of microphone device 100.
In order to strengthen the fixing intensity of the breathable barrier 4, in present embodiment, being connected to for the frame 1 is described
The side of the short side wall 312b of magnetic bowl 31 is equipped with the recessing groove 11 that ecto-entad is recessed and is connected with the container 3121,
The breathable barrier 4 is sticked simultaneously to be fixed in the container 3121 and the recessing groove 11.The structure setting is gone back simultaneously
The fixing intensity for strengthening the magnetic bowl 31 and the frame 1 is played, improves its reliability.
Compared with the relevant technologies, the microphone device of the utility model sets logical through thereon on the side wall of the magnetic bowl
Hole, and pass through and the breathable barrier is set to be covered on the through-hole completely and forms fixation, the position of the through-hole avoids
The side of the frame and the bottom wall of the magnetic bowl, so as to effectively evaded assembling when because the side of the frame is excessively high or described in
The phenomenon that bottom wall of magnetic bowl is set and led to its leak holes the back cavity air-flow is not smooth after being blocked by other component pressures, improves described
The reliability of microphone device；The damping size of the back cavity is effectively adjusted by the breathable barrier to improve the acoustical generator
The low-frequency distortion of part improves the acoustical behavior of the microphone device.
Above-described is only the embodiment of the utility model, it should be noted here that the ordinary skill for this field
For personnel, under the premise of not departing from the utility model and creating design, improvement can also be made, but these belong to this practicality
Novel protection domain.
Claims (7)
1. a kind of microphone device including frame, is fixed on the vibrational system of the frame and drives the vibrational system vibration
Magnetic circuit system, the frame, the vibrational system and the magnetic circuit system surround back cavity jointly, which is characterized in that the magnetic circuit
System includes being fixed on the magnetic bowl of the frame, and the vibrational system is fixed on one end of the frame, and the magnetic bowl is fixed on
The frame other end opposite with the vibrational system, the magnetic bowl includes bottom wall, by the bottom wall towards the vibrational system
Direction bending extends and abuts the side wall for being fixed on the frame, and the side wall is provided through at least one through-hole, described logical
Hole is connected with the back cavity；The microphone device further include be covered on completely the through-hole and be fixed on the side wall it is ventilative every
Off member.
2. microphone device according to claim 1, which is characterized in that the through-hole includes two and spaced setting.
3. microphone device according to claim 2, which is characterized in that two through-holes are about in the microphone device
The heart is symmetrical arranged.
4. microphone device according to claim 3, which is characterized in that the microphone device is rectangular, and the side wall includes
Two long side walls being oppositely arranged and two short side walls being oppositely arranged, two through-holes are respectively arranged on two short sides
Wall.
5. microphone device according to claim 4, which is characterized in that the arc-shaped structure of short side wall.
6. microphone device according to claim 4, which is characterized in that the short side wall be equipped with from its outside to inward side to
Be recessed the container formed, and the through-hole is located in the container, and the breathable barrier, which is sticked, is fixed on the container
It is interior.
7. microphone device according to claim 6, which is characterized in that the frame is connected to the described short of the magnetic bowl
The side of side wall is equipped with the recessing groove that ecto-entad is recessed and is connected with the container, and the breathable barrier is sticked solid simultaneously
Due in the container and the recessing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721588807.7U CN207531073U (en) | 2017-11-22 | 2017-11-22 | Microphone device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721588807.7U CN207531073U (en) | 2017-11-22 | 2017-11-22 | Microphone device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207531073U true CN207531073U (en) | 2018-06-22 |
Family
ID=62579945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721588807.7U Expired - Fee Related CN207531073U (en) | 2017-11-22 | 2017-11-22 | Microphone device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207531073U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110392329A (en) * | 2019-06-03 | 2019-10-29 | 瑞声科技(新加坡)有限公司 | Microphone device |
| CN110572755A (en) * | 2019-09-06 | 2019-12-13 | 歌尔科技有限公司 | Acoustic device and electronic apparatus |
| CN110662133A (en) * | 2019-08-20 | 2020-01-07 | 歌尔股份有限公司 | Acoustic device and electronic apparatus |
| CN110662134A (en) * | 2019-08-21 | 2020-01-07 | 歌尔股份有限公司 | Acoustic device and electronic apparatus |
| CN110719551A (en) * | 2019-08-20 | 2020-01-21 | 歌尔股份有限公司 | Acoustic device and electronic apparatus |
| WO2020029643A1 (en) * | 2018-08-05 | 2020-02-13 | 瑞声声学科技(深圳)有限公司 | Speaker |
| CN111163406A (en) * | 2019-12-30 | 2020-05-15 | 歌尔股份有限公司 | Sound production device and speaker module |
-
2017
- 2017-11-22 CN CN201721588807.7U patent/CN207531073U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020029643A1 (en) * | 2018-08-05 | 2020-02-13 | 瑞声声学科技(深圳)有限公司 | Speaker |
| CN110392329A (en) * | 2019-06-03 | 2019-10-29 | 瑞声科技(新加坡)有限公司 | Microphone device |
| CN110662133A (en) * | 2019-08-20 | 2020-01-07 | 歌尔股份有限公司 | Acoustic device and electronic apparatus |
| CN110719551A (en) * | 2019-08-20 | 2020-01-21 | 歌尔股份有限公司 | Acoustic device and electronic apparatus |
| CN110719551B (en) * | 2019-08-20 | 2021-11-26 | 歌尔股份有限公司 | Acoustic device and electronic apparatus |
| CN110662134A (en) * | 2019-08-21 | 2020-01-07 | 歌尔股份有限公司 | Acoustic device and electronic apparatus |
| CN110662134B (en) * | 2019-08-21 | 2022-05-24 | 歌尔股份有限公司 | Acoustic device and electronic apparatus |
| CN110572755A (en) * | 2019-09-06 | 2019-12-13 | 歌尔科技有限公司 | Acoustic device and electronic apparatus |
| CN110572755B (en) * | 2019-09-06 | 2021-11-26 | 歌尔科技有限公司 | Acoustic device and electronic apparatus |
| CN111163406A (en) * | 2019-12-30 | 2020-05-15 | 歌尔股份有限公司 | Sound production device and speaker module |
| CN111163406B (en) * | 2019-12-30 | 2022-01-07 | 歌尔股份有限公司 | Sound production device and speaker module |
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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 |
Granted publication date: 20180622 Termination date: 20211122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |