CN109121051A - Microphone device - Google Patents
Microphone device Download PDFInfo
- Publication number
- CN109121051A CN109121051A CN201810919805.4A CN201810919805A CN109121051A CN 109121051 A CN109121051 A CN 109121051A CN 201810919805 A CN201810919805 A CN 201810919805A CN 109121051 A CN109121051 A CN 109121051A
- Authority
- CN
- China
- Prior art keywords
- wall
- voice coil
- microphone device
- fixed
- frame
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
Abstract
The present invention discloses a kind of microphone device comprising frame, vibrational system, magnetic circuit system and elastic supporting member for supporting optical member；The vibrational system includes vibrating diaphragm and voice coil；The magnetic circuit system includes magnetic bowl and is spaced the magnet steel to form magnetic gap with the magnetic bowl；The voice coil is plugged and is suspended in the magnetic gap, and the elastic supporting member for supporting optical member includes the first wall, the second wall, elastic wall and the fracture for being opened in second wall and cutting off second wall；The vibrating diaphragm is attached at the elastic supporting member for supporting optical member and is fixed on the frame by the elastic supporting member for supporting optical member, and the voice coil is fixed on the side far from the vibrating diaphragm of second wall and part covers the fracture；The vibrating diaphragm, the voice coil and the magnet steel surround sounding inner cavity jointly, and the sounding inner cavity is in communication with the outside by the fracture.Compared with the relevant technologies, microphone device acoustical behavior of the invention is more excellent.
Description
[technical field]
The present invention relates to electroacoustic conversion art more particularly to a kind of microphone devices for applying to portable electronic product.
[background technique]
With the arrival of mobile internet era, the quantity of Intelligent mobile equipment constantly rises.And in numerous mobile devices
Among, mobile phone is undoubtedly most common, most portable mobile terminal device.Currently, 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 frame and the driving vibrational system
The magnetic circuit system of vibration sounding, the vibrational system include the sound of the vibrating diaphragm for being fixed on the frame, the driving diaphragm oscillations
Enclose and be attached at the top dome of the vibrating diaphragm；The magnetic circuit system include magnetic bowl and be contained in the magnetic bowl and with the magnetic bowl-type
At the magnet steel of magnetic gap, the voice coil, which plugs, to be suspended in the magnetic gap.
However, in the microphone device of the relevant technologies, the air for the cavity that the vibrating diaphragm, the voice coil and the magnet steel surround
It is only capable of going out by the clearance leakage between voice coil and magnet steel, to balance acoustic pressure.But with the miniature development of microphone device and precision
Development, which can not allow the smooth air of inside cavity to leak out, to affect the acoustical behavior of microphone device.
Therefore, it is really necessary to provide a kind of new microphone device solution above-mentioned technical problem.
[summary of the invention]
The purpose of the present invention is overcoming above-mentioned technical problem, a kind of acoustical behavior more preferably microphone device is provided.
In order to achieve the above objectives, the present invention provides a kind of microphone device comprising frame, the vibration for being fixed on the frame
System and the magnetic circuit system for driving the vibrational system sounding；The vibrational system includes being fixed on vibrating diaphragm and the drive of the frame
Move the voice coil of the diaphragm oscillations sounding；The magnetic circuit system includes being fixed on the magnetic bowl of the frame and being contained in the magnetic bowl
It is interior and the magnet steel to form magnetic gap is set with magnetic bowl interval；The voice coil is plugged and is suspended in the magnetic gap, described
Microphone device further includes the elastic supporting member for supporting optical member for being fixed on the frame, the elastic supporting member for supporting optical member include the first wall annular in shape,
Every the second wall annular in shape, connection first wall and second wall being set on the inside of first wall elastic wall and
The fracture for being opened in second wall and cutting off second wall；The vibrating diaphragm is attached at the elastic supporting member for supporting optical member and passes through institute
It states elastic supporting member for supporting optical member and is fixed on the frame, the voice coil is fixed on the side far from the vibrating diaphragm of second wall and part
Cover the fracture；The vibrating diaphragm, the voice coil and the magnet steel surround sounding inner cavity jointly, and the fracture is by the sounding
Inner cavity is in communication with the outside.
Preferably, the fracture includes at least two and is spaced apart from each other setting.
Preferably, second wall be in rectangle comprising two be oppositely arranged long side, two short sides being oppositely arranged and four
A corner, two fractures are opened in two long sides of second wall respectively, and non-conterminous respectively close to two
The corner.
Preferably, two fractures being equidistant to immediate two corners.
Preferably, the elastic supporting member for supporting optical member is the flexible circuit board being electrically connected with the voice coil.
Preferably, the magnetic circuit system further includes folding to set the pole piece for being fixed on the magnet steel, and the pole piece is contained in described
It is intracavitary in sounding.
Compared with prior art, in microphone device of the invention, the vibrating diaphragm is fixed on by the elastic supporting member for supporting optical member
The frame, the voice coil, which is fixed on second wall of the elastic supporting member for supporting optical member and plugs, to be suspended in magnetic gap, so that institute
It states vibrating diaphragm, the voice coil and the magnet steel and surrounds sounding inner cavity jointly；It is described disconnected by being equipped in the elastic supporting member for supporting optical member
Mouthful, and the Voice coil portions is made to cover the fracture, so that the sounding inner cavity is in communication with the outside by the fracture.It is above-mentioned
Structure leak out the air acoustic pressure of the sounding inner cavity can not only by the magnetic gap between the voice coil and the magnet steel,
It can also be leaked out simultaneously by the fracture, so that the gas pressure leak of the sounding inner cavity is more smooth, effectively improve institute
State the acoustical behavior of microphone device.
[Detailed description of the invention]
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, in which:
Fig. 1 is the schematic perspective view of microphone device of the present invention；
Fig. 2 is the part isometric structural exploded view of microphone device of the present invention；
Fig. 3 is the line A-A cross-sectional view along Fig. 1；
Fig. 4 is the enlarged drawing of part shown in B in Fig. 3；
Fig. 5 is the schematic perspective view of the elastic supporting member for supporting optical member of microphone device of the present invention.
[specific embodiment]
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiments are merely a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-2, the present invention provides a kind of microphone device 100 comprising frame 1, vibrational system 2, magnetic circuit
System 3 and elastic supporting member for supporting optical member 4.
The frame 1 is for fixing the vibrational system 2, the magnetic circuit system 3 and the elastic supporting member for supporting optical member 4.
The vibrational system 2 includes the voice coil of the vibrating diaphragm 21 for being fixed on the frame 1, driving 21 vibration sounding of vibrating diaphragm
It 22 and is sticked and is fixed on the top dome 23 of the vibrating diaphragm 21.
Incorporated by reference to shown in Fig. 3-4, specifically, the vibrating diaphragm 21 includes vibration section 211, by the periphery of the vibration section 211
Outwardly extending ring portion 212 extends from the ring portion 212 to 1 direction of frame and is fixed on the fixation of the frame 1
Portion 213.
The voice coil 22 is fixed on the side far from the vibrating diaphragm 21 of the elastic supporting member for supporting optical member 4.
The top dome 23, which is sticked, is fixed on the side far from the magnetic circuit system 3 of the vibration section 211, for increasing
The rigidity for stating vibration section 211, for improving the high-frequency acoustic performance of the microphone device 100.The top dome 23, which is sticked, to be fixed on
The side far from the magnetic circuit system 3 of the vibrating diaphragm 21.Its fixed form is unlimited, for example, the top dome 23 passes through gluing side
The vibrating diaphragm 21 is fixed in formula fitting.
The magnetic circuit system 3 drives 2 vibration sounding of vibrational system.The magnetic circuit system 3 includes being fixed on the basin
The magnetic bowl 31 of frame 1 and the magnet steel 32 for being contained in the magnetic bowl 31 and being formed with the setting of the magnetic bowl 31 interval magnetic gap 10.Institute
Voice coil 22 is stated to plug and be suspended in the magnetic gap 10.
Certainly, the magnetic circuit system 3 further includes folding to set the pole piece 33 for being fixed on the magnet steel 32.The pole piece 33 is for being
32 magnetic conduction of magnet steel, reduces the outflow of the magnetic line of force, effectively improves the driving force of the magnetic circuit system 3.
Incorporated by reference to shown in Fig. 5, the elastic supporting member for supporting optical member 4 is fixed on the frame 1.Specifically, the elastic supporting member for supporting optical member 4 wraps
Include the first wall 41 annular in shape, the second wall 42 annular in shape for being arranged at intervals at 41 inside of the first wall, connection described first
The elastic wall 43 of wall 41 and second wall 42 and the fracture for being opened in second wall 42 and cutting off second wall 42
44。
The vibrating diaphragm 21 is attached at the elastic supporting member for supporting optical member 4 and is fixed on the frame 1 by the elastic supporting member for supporting optical member 4.
The vibrating diaphragm 21, the voice coil 22 and the magnet steel 32 surround sounding inner cavity 20 jointly, and the fracture 44 will be in the sounding
Chamber 20 is in communication with the outside.The pole piece 33 is contained in the sounding inner cavity 20.
The voice coil 22 is fixed on the side far from the vibrating diaphragm 21 of second wall 42 and part covers the fracture
44, i.e., the described voice coil 22 is arranged with 44 face of fracture.Specifically, the fracture 44 includes at least two and is spaced apart from each other and sets
It sets.In the present embodiment, second wall 42 is in rectangle comprising two long sides 421, two being oppositely arranged are oppositely arranged short
Side 422 and four corners 423, two fractures 44 are opened in two long sides 421 of second wall 42 respectively, and
Respectively close to two non-conterminous corners 423.Two fractures 42 arrive the distance in immediate two corners 423
It is equal.The structure makes the stable structure of elastic supporting member for supporting optical member, even intensity, while air more equal when leaking from the fracture 42
Weighing apparatus, stability are higher.
That is, in above structure on the one hand the air in the sounding inner cavity 20 can pass through the voice coil 22 and institute
The gap (a part of the i.e. described magnetic gap 10) stated between magnet steel 32 leaks out；At the same time it can also be let out by the fracture 42
It leaks out.And then realize the inside and outside sound pressure equalisation of the microphone device 100, to ensure that it works normally sounding, stablize its acoustics
Energy.Above structure can also realize the smooth air leakage of the sounding inner cavity 20 i.e. under more accurate and miniature structure situation
Out.
More preferably, the elastic supporting member for supporting optical member 4 is the flexible circuit board being electrically connected with the voice coil 22.The i.e. described resilient support
Part 4 acts also as simultaneously provides the effect of electric signal for 22 lead of voice coil, and avoiding through pin configuration is the voice coil 22
Electric signal is introduced, that is, avoids the risk of broken string, improves the reliability of microphone device 100.
Compared with prior art, in microphone device of the invention, the vibrating diaphragm is fixed on by the elastic supporting member for supporting optical member
The frame, the voice coil, which is fixed on second wall of the elastic supporting member for supporting optical member and plugs, to be suspended in magnetic gap, so that institute
It states vibrating diaphragm, the voice coil and the magnet steel and surrounds sounding inner cavity jointly；It is described disconnected by being equipped in the elastic supporting member for supporting optical member
Mouthful, and the Voice coil portions is made to cover the fracture, so that the sounding inner cavity is in communication with the outside by the fracture.It is above-mentioned
Structure leak out the air acoustic pressure of the sounding inner cavity can not only by the magnetic gap between the voice coil and the magnet steel,
It can also be leaked out simultaneously by the fracture, so that the gas pressure leak of the sounding inner cavity is more smooth, effectively improve institute
State the acoustical behavior of microphone device.
Above-described is only embodiments of the present invention, it should be noted here that for those of ordinary skill in the art
For, without departing from the concept of the premise of the invention, improvement can also be made, but these belong to protection model of the invention
It encloses.
Claims (6)
1. a kind of microphone device comprising frame, the vibrational system for being fixed on the frame and the driving vibrational system sounding
Magnetic circuit system；The vibrational system includes the vibrating diaphragm for being fixed on the frame and the voice coil for driving the diaphragm oscillations sounding；
The magnetic circuit system includes being fixed on the magnetic bowl of the frame and being contained in the magnetic bowl and shape is arranged with magnetic bowl interval
At the magnet steel of magnetic gap；The voice coil is plugged and is suspended in the magnetic gap, which is characterized in that the microphone device further includes
It is fixed on the elastic supporting member for supporting optical member of the frame, the elastic supporting member for supporting optical member includes the first wall annular in shape, is arranged at intervals at described
The elastic wall of the second wall annular in shape, connection first wall and second wall on the inside of one wall and it is opened in described second
Wall and the fracture for cutting off second wall；The vibrating diaphragm is attached at the elastic supporting member for supporting optical member and is consolidated by the elastic supporting member for supporting optical member
Due to the frame, the voice coil is fixed on the side far from the vibrating diaphragm of second wall and part covers the fracture；
The vibrating diaphragm, the voice coil and the magnet steel surround sounding inner cavity jointly, and the fracture connects the sounding inner cavity and the external world
It is logical.
2. microphone device according to claim 1, which is characterized in that the fracture includes at least two and is spaced apart from each other and sets
It sets.
3. microphone device according to claim 2, which is characterized in that second wall is in rectangle comprising two set relatively
Long side, two short sides being oppositely arranged and the four corners set, two fractures are opened in two of second wall respectively
The long side, and respectively close to two non-conterminous corners.
4. microphone device according to claim 3, which is characterized in that two fractures to immediate two angles
Portion is equidistant.
5. microphone device according to claim 1, which is characterized in that the elastic supporting member for supporting optical member is to be electrically connected with the voice coil
Flexible circuit board.
6. microphone device according to claim 1, which is characterized in that the magnetic circuit system further include it is folded set be fixed on it is described
The pole piece of magnet steel, the pole piece are contained in intracavitary in the sounding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810919805.4A CN109121051A (en) | 2018-08-14 | 2018-08-14 | Microphone device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810919805.4A CN109121051A (en) | 2018-08-14 | 2018-08-14 | Microphone device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109121051A true CN109121051A (en) | 2019-01-01 |
Family
ID=64853251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810919805.4A Pending CN109121051A (en) | 2018-08-14 | 2018-08-14 | Microphone device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109121051A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110366073A (en) * | 2019-06-03 | 2019-10-22 | 瑞声科技(新加坡)有限公司 | Microphone device |
| WO2020228341A1 (en) * | 2019-05-10 | 2020-11-19 | 瑞声声学科技(深圳)有限公司 | Sound generating device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001258093A (en) * | 2000-03-10 | 2001-09-21 | Victor Co Of Japan Ltd | Electroacoustic transducer |
| CN201467431U (en) * | 2009-05-15 | 2010-05-12 | 瑞声声学科技(常州)有限公司 | Electric sound-energy sounding device |
| CN103347235A (en) * | 2013-06-14 | 2013-10-09 | 歌尔声学股份有限公司 | Sound production device |
| CN104125528A (en) * | 2013-04-25 | 2014-10-29 | 易音特电子株式会社 | Bonding structure of diaphragm for microspeaker |
| CN205142510U (en) * | 2015-11-05 | 2016-04-06 | 瑞声光电科技(常州)有限公司 | Loudspeaker |
| CN205320276U (en) * | 2015-11-05 | 2016-06-15 | 瑞声光电科技(常州)有限公司 | Loudspeaker |
| CN207354575U (en) * | 2017-09-26 | 2018-05-11 | 瑞声光电科技(常州)有限公司 | Loudspeaker enclosure |
-
2018
- 2018-08-14 CN CN201810919805.4A patent/CN109121051A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001258093A (en) * | 2000-03-10 | 2001-09-21 | Victor Co Of Japan Ltd | Electroacoustic transducer |
| CN201467431U (en) * | 2009-05-15 | 2010-05-12 | 瑞声声学科技(常州)有限公司 | Electric sound-energy sounding device |
| CN104125528A (en) * | 2013-04-25 | 2014-10-29 | 易音特电子株式会社 | Bonding structure of diaphragm for microspeaker |
| CN103347235A (en) * | 2013-06-14 | 2013-10-09 | 歌尔声学股份有限公司 | Sound production device |
| CN205142510U (en) * | 2015-11-05 | 2016-04-06 | 瑞声光电科技(常州)有限公司 | Loudspeaker |
| CN205320276U (en) * | 2015-11-05 | 2016-06-15 | 瑞声光电科技(常州)有限公司 | Loudspeaker |
| CN207354575U (en) * | 2017-09-26 | 2018-05-11 | 瑞声光电科技(常州)有限公司 | Loudspeaker enclosure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020228341A1 (en) * | 2019-05-10 | 2020-11-19 | 瑞声声学科技(深圳)有限公司 | Sound generating device |
| CN110366073A (en) * | 2019-06-03 | 2019-10-22 | 瑞声科技(新加坡)有限公司 | Microphone device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190101 |
|
| RJ01 | Rejection of invention patent application after publication |