CN110401903A - Microphone device - Google Patents
Microphone device Download PDFInfo
- Publication number
- CN110401903A CN110401903A CN201910563116.9A CN201910563116A CN110401903A CN 110401903 A CN110401903 A CN 110401903A CN 201910563116 A CN201910563116 A CN 201910563116A CN 110401903 A CN110401903 A CN 110401903A
- Authority
- CN
- China
- Prior art keywords
- vibrating diaphragm
- frame
- magnetic
- microphone device
- opposite sides
- 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
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/16—Mounting or tensioning of diaphragms or cones
-
- 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
- H04R9/025—Magnetic circuit
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The present invention discloses a kind of microphone device comprising frame and is individually fixed in the vibrational system of the frame and the magnetic circuit system with magnetic gap；The vibrational system includes being individually fixed in the first vibrating diaphragm of the frame opposite sides and the second vibrating diaphragm, being fixed on first vibrating diaphragm and be inserted into the magnetic gap to drive the voice coil and skeleton of the first diaphragm oscillations sounding, the opposite end of the skeleton is individually fixed in first vibrating diaphragm and second vibrating diaphragm, and the skeleton and the magnetic circuit system interval are arranged, first vibrating diaphragm, second vibrating diaphragm and the frame surround accommodating space jointly, and the magnetic circuit system is contained in the accommodating space.Compared with the relevant technologies, microphone device acoustical behavior of the invention and good reliability are applied widely.
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 include frame and the vibrational system for being individually fixed in the frame and have magnetic
The magnetic circuit system in gap；The vibrational system includes being fixed on the vibrating diaphragm of the frame and being inserted in the magnetic gap to drive
The voice coil of the diaphragm oscillations sounding.The magnetic circuit system includes the magnetic yoke for being connected to the frame, is fixed on the magnetic yoke
Main magnet steel and secondary magnet steel, the main magnet steel and the secondary magnet steel interval are arranged and the magnetic gap are collectively formed.
However, the microphone device in the related technology, the vibrational system is only a vibrating diaphragm, and vibration sounding is
One face of microphone device, is unable to satisfy the needs of the special occasions of two-sided sounding request.
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 good acoustical behavior, high reliablity and the scope of application are provided
Wide microphone device.
To achieve the goals above, the present invention provides a kind of microphone device comprising frame and is individually fixed in the basin
The vibrational system of frame and magnetic circuit system with magnetic gap；The vibrational system includes being individually fixed in the frame opposite sides
The first vibrating diaphragm and the second vibrating diaphragm, be fixed on first vibrating diaphragm and be inserted into the magnetic gap to drive first diaphragm oscillations
The voice coil and skeleton of sounding, the opposite end of the skeleton are individually fixed in first vibrating diaphragm and second vibrating diaphragm, and
The skeleton and the magnetic circuit system interval are arranged, and first vibrating diaphragm, second vibrating diaphragm and the frame surround jointly
Accommodating space, the magnetic circuit system are contained in the accommodating space.
Preferably, the skeleton includes two and is respectively arranged at the opposite sides of the magnetic circuit system.
Preferably, the magnetic circuit system includes magnetic yoke, the flange extended by magnetic yoke opposite sides bending, by the magnetic
Yoke extends horizontally to the frame and the fixation wall to form a fixed connection and the steel magnetic for being fixed on the magnetic yoke, the steel magnetic with
The flange interval forms the magnetic gap.
Preferably, the magnetic yoke is in rectangle, and two flange are located at the opposite sides of the magnetic yoke long axis, and two
The skeleton is located at the opposite sides of the magnetic yoke short axle.
Preferably, the fixation wall includes four and is located at the opposite ends of two flange.
Preferably, the skeleton is made of metal material.
Preferably, the vibrational system further includes being attached at the first top dome of first vibrating diaphragm and being attached at described second
Second top dome of vibrating diaphragm.
Preferably, first top dome be located at first vibrating diaphragm far from second vibrating diaphragm side, described second
Top dome is located at the side far from first vibrating diaphragm of second vibrating diaphragm.
Preferably, the microphone device further includes the with the first vocal hole for being located at the frame opposite sides
One front cover and the second front cover with the second vocal hole, first front cover, which is fixed on the frame and presses, is set to first vibration
Film, first vocal hole and the first top dome face are arranged；Second front cover, which is fixed on the frame and presses, is set to institute
The second vibrating diaphragm is stated, second vocal hole and the second top dome face are arranged.
Compared with prior art, microphone device of the invention the opposite sides of the frame be respectively set the first vibrating diaphragm and
Second vibrating diaphragm, and skeleton is set and connects first vibrating diaphragm and second vibrating diaphragm, the voice coil is fixed on first vibration
Film is simultaneously inserted into magnetic gap, to drive the first diaphragm oscillations sounding, while by the first vibration vibration of membrane through the bone
Frame drives the second vibrating diaphragm linkage, so that the second diaphragm oscillations sounding effectively increases institute to realize two-sided vocal structure
The vocal performance of microphone device is stated, while two-sided vocal structure makes the scope of application of the microphone device wider.
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 decomposition diagram of microphone device of the present invention；
Fig. 3 is the cut-away view of the line A-A along Fig. 1；
Fig. 4 is magnified partial view shown in B in Fig. 3；
Fig. 5 is the vibrational system and magnetic circuit system assembling structure schematic diagram 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 shown in Fig. 1-4, wherein Fig. 1 is the schematic perspective view of microphone device of the present invention；Fig. 2 is this
The part isometric structural decomposition diagram of invention microphone device；Fig. 3 is the cut-away view of the line A-A along Fig. 1；Fig. 4 is B institute in Fig. 3
Show magnified partial view；Fig. 5 is the vibrational system and magnetic circuit system assembling structure schematic diagram of microphone device of the present invention.The present invention provides
A kind of microphone device 100 comprising frame 1, vibrational system 2 and magnetic circuit system 3, the first front cover 4 with magnetic gap 10
With the second front cover 5.
The frame 1 is used to support the fixed vibrational system 2 and the magnetic circuit system 3, and the magnetic circuit system 3 drives institute
State 2 vibration sounding of vibrational system.
The vibrational system 2 includes the first vibrating diaphragm 21 and the second vibrating diaphragm for being individually fixed in 1 opposite sides of frame
22, voice coil 23, skeleton 24, the first top dome 25 and the second top dome 26.
First vibrating diaphragm 21 and second vibrating diaphragm 22 be individually fixed in the opposite sides of the frame 1 and with the basin
Frame 1 surrounds accommodating space jointly.
The voice coil 23 is fixed on first vibrating diaphragm 21 and is inserted into the magnetic gap 10 to drive first vibrating diaphragm to shake
21 dynamic sounding.
Wherein, the voice coil 23 can be connected directly or indirectly with first vibrating diaphragm 21, to realize described in driving
First vibrating diaphragm, 21 vibration sounding.
The opposite end of the skeleton 24 is individually fixed in first vibrating diaphragm 21 and second vibrating diaphragm 22, and described
Skeleton 24 and the magnetic circuit system 3 interval are arranged.Second vibrating diaphragm 22 is formed and first vibrating diaphragm by the skeleton 24
The linkage of 21 identical vibrations not only effectively increases vibrating effect to realize the two-sided vocal structure of the microphone device 100
And acoustical behavior, while being suitable for needing the occasion of two-sided sounding, the scope of application is wider.
More preferably, the skeleton 24 includes two and is respectively arranged at the opposite sides of the magnetic circuit system 3.The structure can
The balance and stability of first vibrating diaphragm 21 and second vibrating diaphragm 22 vibration described in effective guarantee.
In present embodiment, the skeleton 24 is made of metal material, and especially light metal material is made, lightest, by force
Degree is big, is unlikely to deform and fractures, and improves reliability.Certainly, material is without being limited thereto.
First top dome 25 is attached at first vibrating diaphragm 21, and second top dome 26 is attached at second vibrating diaphragm
22.The setting of first top dome 25 and the second top dome 26 has increased separately the oscillation intensity of first vibrating diaphragm 21, improves vibration
Dynamic effect, keeps its acoustical behavior more preferable.
More preferably, first top dome 25 is located at the side far from second vibrating diaphragm 22 of first vibrating diaphragm 21, institute
State the side far from first vibrating diaphragm 21 that the second top dome 26 is located at second vibrating diaphragm 22.
The magnetic circuit system 3 includes magnetic yoke 31, the flange 32 extended by 31 opposite sides of magnetic yoke bending, by the magnetic
Yoke 31 extends horizontally to the frame 1 and the fixation wall 33 that forms a fixed connection with the frame 1 and is fixed on the magnetic yoke
31 steel magnetic 34.Wherein, the steel magnetic 34 forms the magnetic gap 10 with the flange 32 interval.
In present embodiment, the magnetic yoke 31 is in rectangle, and two flange 32 are located at 31 long axis of magnetic yoke
Opposite sides, two skeletons 24 are located at the opposite sides of 31 short axle of magnetic yoke.The structure as much as possible can mention
The magnetic flux of the high magnetic gap 10, i.e. raising driving capability.
Preferably, the fixation wall 33 includes four and is located at the opposite ends of two flange 32.It is i.e. each
The opposite end of the flange 32 each extends over out two fixation walls 33, fixes to be formed with the frame 1.And it is above-mentioned
Structure may make that the skeleton 24 positioned at the 31 short axle opposite sides of magnetic yoke has more spaces for being arranged, can will be described
The width setting of skeleton 24 is bigger, to keep the linkage stability of first vibrating diaphragm 21 and second vibrating diaphragm 22 more preferable.
First front cover 4 and second front cover 5 are located at 1 opposite sides of frame and form fixation.
First front cover 4 has the first vocal hole 41, and first front cover 4, which is fixed on the frame 1 and presses, is set to institute
The first vibrating diaphragm 21 is stated, first vocal hole 41 is arranged with 25 face of the first top dome.
Second front cover 5 has the second vocal hole 51, and second front cover 5, which is fixed on the frame 1 and presses, is set to institute
The second vibrating diaphragm 22 is stated, second vocal hole 51 is arranged with 26 face of the second top dome.
Compared with prior art, microphone device of the invention the opposite sides of the frame be respectively set the first vibrating diaphragm and
Second vibrating diaphragm, and skeleton is set and connects first vibrating diaphragm and second vibrating diaphragm, the voice coil is fixed on first vibration
Film is simultaneously inserted into magnetic gap, to drive the first diaphragm oscillations sounding, while by the first vibration vibration of membrane through the bone
Frame drives the second vibrating diaphragm linkage, so that the second diaphragm oscillations sounding effectively increases institute to realize two-sided vocal structure
The vocal performance of microphone device is stated, while two-sided vocal structure makes the scope of application of the microphone device wider.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (9)
1. a kind of microphone device comprising frame and be individually fixed in the vibrational system of the frame and the magnetic circuit with magnetic gap
System, which is characterized in that the vibrational system includes being individually fixed in the first vibrating diaphragm and the second vibration of the frame opposite sides
Film is fixed on first vibrating diaphragm and is inserted into the magnetic gap to drive the voice coil and bone of the first diaphragm oscillations sounding
Frame, the opposite end of the skeleton are individually fixed in first vibrating diaphragm and second vibrating diaphragm, and the skeleton and the magnetic
The setting of road system interval, first vibrating diaphragm, second vibrating diaphragm and the frame surround accommodating space, the magnetic circuit jointly
System is contained in the accommodating space.
2. microphone device according to claim 1, which is characterized in that the skeleton includes two and is respectively arranged at described
The opposite sides of magnetic circuit system.
3. microphone device according to claim 2, which is characterized in that the magnetic circuit system includes magnetic yoke, by the magnetic yoke
The opposite sides bending flange extended, the fixation wall that is extended horizontally to the frame by the magnetic yoke and formed a fixed connection and
It is fixed on the steel magnetic of the magnetic yoke, the steel magnetic and the flange interval form the magnetic gap.
4. microphone device according to claim 3, which is characterized in that the magnetic yoke is in rectangle, two flange difference
Positioned at the opposite sides of the magnetic yoke long axis, two skeletons are located at the opposite sides of the magnetic yoke short axle.
5. microphone device according to claim 4, which is characterized in that the fixation wall includes four and is located at two
The opposite end of the flange.
6. microphone device according to claim 1, which is characterized in that the skeleton is made of metal material.
7. microphone device according to claim 1, which is characterized in that the vibrational system further includes being attached at described first
First top dome of vibrating diaphragm and the second top dome for being attached at second vibrating diaphragm.
8. microphone device according to claim 7, which is characterized in that first top dome is located at the remote of first vibrating diaphragm
Side from second vibrating diaphragm, second top dome are located at the side far from first vibrating diaphragm of second vibrating diaphragm.
9. microphone device according to claim 8, which is characterized in that the microphone device further includes being located at the basin
The first front cover with the first vocal hole and the second front cover with the second vocal hole of frame opposite sides, first front cover are solid
It due to the frame and presses set on first vibrating diaphragm, first vocal hole and the first top dome face are arranged；Described
Two front covers, which are fixed on the frame and press, is set to second vibrating diaphragm, and second vocal hole is set with the second top dome face
It sets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910563116.9A CN110401903A (en) | 2019-06-26 | 2019-06-26 | Microphone device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910563116.9A CN110401903A (en) | 2019-06-26 | 2019-06-26 | Microphone device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110401903A true CN110401903A (en) | 2019-11-01 |
Family
ID=68324226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910563116.9A Pending CN110401903A (en) | 2019-06-26 | 2019-06-26 | Microphone device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110401903A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111131977A (en) * | 2020-03-05 | 2020-05-08 | 瑞声科技(新加坡)有限公司 | Loudspeaker |
| CN111131976A (en) * | 2020-03-05 | 2020-05-08 | 瑞声科技(新加坡)有限公司 | Loudspeaker |
| CN111405428A (en) * | 2019-12-27 | 2020-07-10 | 瑞声科技(新加坡)有限公司 | Sound production device |
| WO2021174576A1 (en) * | 2020-03-05 | 2021-09-10 | 瑞声声学科技(深圳)有限公司 | Sound production device |
| WO2021232473A1 (en) * | 2020-05-20 | 2021-11-25 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| WO2024119344A1 (en) * | 2022-12-06 | 2024-06-13 | 瑞声光电科技(常州)有限公司 | Sound generation device |
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| CN102711021A (en) * | 2012-01-06 | 2012-10-03 | 瑞声声学科技(深圳)有限公司 | Miniature sounding device |
| CN204681578U (en) * | 2015-05-11 | 2015-09-30 | 瑞声光电科技(常州)有限公司 | Electro-acoustic element |
| US20170272866A1 (en) * | 2016-03-18 | 2017-09-21 | Dolby International Ab | Force Balanced Micro Transducer Array |
| CN107396267A (en) * | 2017-08-30 | 2017-11-24 | 歌尔股份有限公司 | Minitype acoustic generator |
| CN108322869A (en) * | 2018-01-24 | 2018-07-24 | 瑞声科技(新加坡)有限公司 | Microphone device |
| CN108632729A (en) * | 2018-06-25 | 2018-10-09 | 歌尔股份有限公司 | Microphone device and portable terminal |
| CN108882123A (en) * | 2018-06-25 | 2018-11-23 | 歌尔股份有限公司 | Microphone device and portable terminal |
| CN208638710U (en) * | 2018-08-14 | 2019-03-22 | 瑞声科技(新加坡)有限公司 | Microphone device |
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| CN102711021A (en) * | 2012-01-06 | 2012-10-03 | 瑞声声学科技(深圳)有限公司 | Miniature sounding device |
| CN204681578U (en) * | 2015-05-11 | 2015-09-30 | 瑞声光电科技(常州)有限公司 | Electro-acoustic element |
| US20170272866A1 (en) * | 2016-03-18 | 2017-09-21 | Dolby International Ab | Force Balanced Micro Transducer Array |
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| CN208638710U (en) * | 2018-08-14 | 2019-03-22 | 瑞声科技(新加坡)有限公司 | Microphone device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111405428A (en) * | 2019-12-27 | 2020-07-10 | 瑞声科技(新加坡)有限公司 | Sound production device |
| CN111405428B (en) * | 2019-12-27 | 2021-07-09 | 瑞声科技(新加坡)有限公司 | Sound production device |
| CN111131977A (en) * | 2020-03-05 | 2020-05-08 | 瑞声科技(新加坡)有限公司 | Loudspeaker |
| CN111131976A (en) * | 2020-03-05 | 2020-05-08 | 瑞声科技(新加坡)有限公司 | Loudspeaker |
| CN111131977B (en) * | 2020-03-05 | 2021-02-26 | 瑞声科技(新加坡)有限公司 | Loudspeaker |
| WO2021174576A1 (en) * | 2020-03-05 | 2021-09-10 | 瑞声声学科技(深圳)有限公司 | Sound production device |
| WO2021232473A1 (en) * | 2020-05-20 | 2021-11-25 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| WO2024119344A1 (en) * | 2022-12-06 | 2024-06-13 | 瑞声光电科技(常州)有限公司 | Sound generation 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191101 |