CN109275074A - Microphone device - Google Patents
Microphone device Download PDFInfo
- Publication number
- CN109275074A CN109275074A CN201811161141.6A CN201811161141A CN109275074A CN 109275074 A CN109275074 A CN 109275074A CN 201811161141 A CN201811161141 A CN 201811161141A CN 109275074 A CN109275074 A CN 109275074A
- Authority
- CN
- China
- Prior art keywords
- frame
- fixed
- vibrating diaphragm
- microphone device
- magnetic
- 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.)
- Granted
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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
-
- 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
- H04R9/04—Construction, mounting, or centering of coil
Landscapes
- 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 provides a kind of microphone devices comprising frame is individually fixed in the vibrational system of the frame and magnetic circuit system and support frame with magnetic gap；The vibrational system includes the vibrating diaphragm for being fixed on the frame, is fixed on the vibrating diaphragm and is inserted in the magnetic gap to drive the voice coil of the diaphragm oscillations sounding and be fixed on the frame and resilient support assemblies opposite and spaced with the vibrating diaphragm, the support frame and the voice coil interval, the support frame is arranged in a whole cyclic structure and around the voice coil, the vibrating diaphragm is fixed in described support frame one end, and the other end is fixed on the resilient support assemblies.Compared with the relevant technologies, microphone device stability of the invention is good and acoustical behavior is 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 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 the vibrating diaphragm for being fixed on the frame, is fixed on the vibrating diaphragm and is inserted in institute
It states magnetic gap and the frame is fixed on the voice coil for driving the diaphragm oscillations sounding and one end, the other end is fixed on the sound
Enclose the resilient support assemblies far from described vibrating diaphragm one end.
However, the vibrating diaphragm and the resilient support assemblies are individually fixed in institute in microphone device described in the relevant technologies
The opposite end of voice coil is stated, although the horizontal swing when resilient support assemblies can effectively prevent the voice coil vibrations, its
The structure directly connecting with voice coil causes the design of the voice coil to be restricted, and the volume of the magnetic circuit system is also limited, from
And it is limited that the acoustics of the microphone device is improved.
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, the acoustical generator that a kind of stability is good and acoustical behavior is good is provided
Part.
To achieve the goals above, the present invention provides a kind of microphone device comprising frame is individually fixed in the frame
Vibrational system and magnetic circuit system and support frame with magnetic gap；The vibrational system includes being fixed on the frame
Vibrating diaphragm is fixed on the vibrating diaphragm and is inserted in the magnetic gap to drive the voice coil of the diaphragm oscillations sounding and be fixed on institute
State frame and resilient support assemblies opposite and spaced with the vibrating diaphragm, the support frame and the voice coil interval, institute
Support frame to be stated in a whole cyclic structure and is arranged around the voice coil, the vibrating diaphragm is fixed in described support frame one end,
Its other end is fixed on the resilient support assemblies.
More preferably, the magnetic circuit system includes magnetic bowl and the magnet steel that is fixed in the magnetic bowl, the magnet steel and the magnetic
Bowl interval forms the magnetic gap, the support frame be arranged around the magnetic bowl and with magnetic bowl interval.
More preferably, the support frame is between the frame and the magnetic bowl.
More preferably, the support frame is inserted in the magnetic gap；The magnetic bowl include bottom wall, from the bottom wall periphery to
The vibrational system direction bends the side wall of extension and is opened in the fracture of the side wall, described in the resilient support assemblies warp
Fracture and extending to is connect with the support frame far from described vibrating diaphragm one end.
More preferably, the resilient support assemblies include one and are in a whole ring structure.
More preferably, the resilient support assemblies include elastic component and the auxiliary vibrating diaphragm for being attached at the elastic component；It is described
Elastic component includes the first fixed arm that is annular in shape and being fixed on the frame, annularly and with first fixed arm interval is arranged
The second fixed arm and connection first fixed arm and second fixed arm elastic arm, second fixed arm with it is described
Support frame is fixed；The auxiliary vibrating diaphragm includes the ring of the arc-shaped structure in cross section, the opposite sides difference by the ring
The first connecting portion and second connecting portion of extension, the first connecting portion are fixedly connected with first fixed arm, and described second
Interconnecting piece is fixedly connected with the side far from the vibrating diaphragm of second fixed arm, and keeps the ring opposite with the elastic arm
Setting.
More preferably, the support frame is fallen in along the diaphragm oscillations direction to the orthographic projection in second fixed arm direction
On second fixed arm.
More preferably, the elastic supporting member for supporting optical member is flexible circuit board.
More preferably, the frame includes frame side wall and prolongs from the frame side wall to one end far from the vibrational system
Stretch the frame stabilizer blade to be formed；The magnetic bowl includes bottom wall and is extended from the bottom wall periphery to vibrational system direction bending
Side wall and the wall extension extended from the bottom wall periphery to frame support direction；The magnet steel and the sidewall spacers shape
At the magnetic gap, the wall extension is fixed on the frame stabilizer blade.
More preferably, the frame stabilizer blade includes four and interval setting, and the wall extension includes four, and the wall extension is equal
It is arranged with each frame stabilizer blade face, each described wall extension is connected to the frame stabilizer blade with its face.
Compared with prior art, in microphone device of the invention, the voice coil is connect with the vibrating diaphragm, while making the bullet
Property support component and the vibrating diaphragm interval be arranged；It will be set in the support frame of a whole cyclic structure around the voice coil
It sets, meanwhile, the vibrating diaphragm is fixed in described support frame one end, the other end is fixed on the resilient support assemblies.I.e. should
Structure makes the resilient support assemblies by connecting the vibrating diaphragm between the support frame, and with the voice coil interval and not straight
It connects in succession, on the one hand eliminates the limitation when resilient support assemblies are directly connected to the voice coil to the voice coil, it is described
Voice coil height is no longer limited by the resilient support assemblies, the microphone device whole height can design it is more frivolous, separately
On the one hand influence of the resilient support assemblies to the magnetic gap is eliminated simultaneously, to eliminate the design to magnetic circuit system
Limitation, keep magnetic circuit more excellent, effectively increase the acoustical behavior of the 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 partial enlargement diagram of part shown in B in Fig. 2；
Fig. 4 is the line A-A cross-sectional view along Fig. 1；
The partial enlargement diagram of part shown in C in this Fig. 4 of Fig. 5；
Fig. 6 is the stereochemical structure exploded view of the resilient support assemblies of microphone device of the present invention；
Fig. 7 is the schematic perspective view of the magnetic bowl of microphone device of the present invention；
Fig. 8 is the assembling schematic diagram of the magnetic bowl of microphone device of the present invention, voice coil, support frame and resilient support assemblies.
[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. 1-8, the present invention provides a kind of microphone device 100 comprising frame 1, vibrational system 2, magnetic circuit
System 3 and support frame 4.The magnetic circuit system 3 drives 2 vibration sounding of vibrational system, and the magnetic circuit system 3 has magnetic
Gap 30.
The frame 1 is for fixing the vibrational system 2, the magnetic circuit system 3 and the support frame 4.Specifically, institute
State the basin that frame 1 includes frame side wall 11 and extended to form from the frame side wall 11 to one end far from the vibrational system 2
Frame stabilizer blade 12.The frame stabilizer blade 12 includes four and interval setting, for fixing the magnetic circuit system 3.
The vibrational system 2 is fixed on the frame 1 and is arranged.In the present embodiment, the vibrational system 2 includes vibrating diaphragm
21, voice coil 22 and resilient support assemblies 23.
The vibrating diaphragm 21 is fixed on the frame 1.
The voice coil 22 is fixed on the vibrating diaphragm 21.The voice coil 22 is inserted in the magnetic gap 30 to drive the vibrating diaphragm
21 vibration soundings.
The resilient support assemblies 23 are fixed on the frame 1.The resilient support assemblies 23 are opposite with the vibrating diaphragm 21
And interval setting.In the present embodiment, the resilient support assemblies 23 include one and are in a whole ring structure, the knot
Structure is more stable to the support effect of the voice coil 22, and it is more excellent that anti-voice coil 22 swings laterally effect.
Specifically, the resilient support assemblies 23 include elastic component 231 and the auxiliary vibration for being attached at the elastic component 231
Film 232.
The elastic component 231 includes the first fixed arm 2311 that is annular in shape and being fixed on the frame 1, it is annular in shape and with institute
State spaced second fixed arm 2312 of the first fixed arm 2311 and connection first fixed arm 2311 and described second
The elastic arm 2313 of fixed arm 2312, second fixed arm and the support frame 4 are fixed, i.e., described second fixed arm with it is described
Support frame 4 is indirectly fixed by the auxiliary vibrating diaphragm 232.
The auxiliary vibrating diaphragm 232 includes the ring 2321 of the arc-shaped structure in cross section, by opposite the two of the ring 2321
The first connecting portion 2322 and second connecting portion 2323 that side each extends over, the first connecting portion 2322 and first fixed arm
2311 are fixedly connected, and the second connecting portion 2323 and the side far from the vibrating diaphragm 21 of second fixed arm 2312 are fixed
Connection, and it is oppositely arranged the ring 2321 with the elastic arm 2313.The auxiliary vibrating diaphragm 232 is made of high molecular material,
For example, being made at least one of high molecular materials such as silica gel, rubber, PEEK, PEL and TPU.Certainly, the auxiliary is made
The material of vibrating diaphragm 232 is not limited to this.
In the present embodiment, the elastic component 231 is flexible circuit board.The elastic component 231 and 22 electricity of voice coil
Connection.On the one hand for improving the oscillation intensity and balance of the vibrational system 2, inhibit to wave, be on the other hand the voice coil
22 lead to connection external power supply, avoid the risk that voice coil leads are easily broken off when voice coil lead structure draws power supply.
The magnetic circuit system 3 is fixed on the frame 1 and is arranged.In the present embodiment, the magnetic circuit system 3 includes magnetic bowl
31 and the magnet steel 32 that is fixed in the magnetic bowl 31.
What the magnetic bowl 31 extended including bottom wall 311, from 311 periphery of bottom wall to 2 direction of vibrational system bending
Side wall 312, the fracture 313 for being opened in the side wall 312 and from 311 periphery of bottom wall to the frame 1 support direction prolong
The wall extension 314 stretched.
The wall extension 314 is fixed on the frame stabilizer blade 12.Specifically, the wall extension 314 includes four, it is described to prolong
It stretches wall 314 to be arranged with each 12 face of frame stabilizer blade, each described wall extension 314 is connected to the basin with its face
Frame stabilizer blade 12.The structure forms one by the way that the wall extension 314 and the frame stabilizer blade 12 are fixed, on the one hand, described in realization
Magnetic bowl 31 is fixed on the frame 1, on the other hand, the resilient support assemblies 23 is spatially set to the magnetic bowl 31
The outside of the side wall 312, and the voice coil 22 is set to the inside of the side wall 312, to make 22 height of voice coil
It is unrestricted, and optimize magnetic Circuit Design more.
The magnet steel 32 forms the magnetic gap 30 with the magnetic bowl 31 interval.Specifically, the magnet steel 32 and the side
The interval of wall 312 forms the magnetic gap 30, and the voice coil 22 is inserted in the magnetic gap 30.
The support frame 4 is spaced with the voice coil 22.The support frame 4 is in a whole cyclic structure and around described
Voice coil 22 is arranged.The vibrating diaphragm 21 is fixed in described 4 one end of support frame, and the other end is fixed on the resilient support assemblies
23.Above structure makes the resilient support assemblies 23 are indirect to connect with the voice coil 22, but passes through the support frame 4
Realization is indirectly connected with.On the one hand, resilient support assemblies 23 and the voice coil 22 release the indirect connection structure without direct correlation
The structure of the voice coil 22 designs, and position can float up and down along the direction of vibration of the vibrating diaphragm 21, and voice coil height is no longer limited
In resilient support assemblies 23,100 whole height of microphone device can design more frivolous；On the other hand, institute is released
The structure design of magnetic circuit system 3 is stated, the resilient support assemblies 23 are not direct glued with 22 bottom of voice coil, effectively avoid magnetic circuit
The interference of system 3 and the resilient support assemblies 23, for magnetic circuit system 3 without resilient support assemblies 23 of stepping down, magnetic circuit system can be real
Structure is now maximized, the acoustical behavior of the microphone device 100 is effectively increased.
The support frame 4 is arranged around the magnetic bowl 31 and is spaced with the magnetic bowl 31.In the present embodiment, in order to
Optimize structure, the support frame 4 is centered around 31 outside of the magnetic bowl, i.e., the described support frame 4 be located at the frame 1 with it is described
Between magnetic bowl 31.The structure is simple, and does not influence the voice coil 22 in the magnetic bowl 31, nor affects in the magnetic bowl 31
The magnetic gap 30, keep the acoustical behavior of the microphone device 100 more excellent.
Certainly, without being limited thereto, the support frame 4 is centered around 31 inside of the magnetic bowl, i.e., the described support frame 4 can be with
It is inserted in the magnetic gap 30, the resilient support assemblies 23 are through the fracture 313 and extend to remote with the support frame 4
It is connected from described 21 one end of vibrating diaphragm.The program meet magnetic circuit performance at the same time it can also allow 100 structure of microphone device more
It is compact.
The support frame 4 is fallen in along 21 direction of vibration of vibrating diaphragm to the orthographic projection in 2312 direction of the second fixed arm
On second fixed arm 2312.The second connecting portion 2323 is fixed in the i.e. described fitting completely of skeleton main body 41, is conducive to
The skeleton main body 41 is fixed on the frame 1 by the resilient support assemblies 23 support, to preferably support the vibration
Film 21 keeps the vibration of the vibrating diaphragm 21 more excellent, i.e., the ability that the described support frame 4 inhibits the vibrating diaphragm 21 to wave is optimal, thus
Keep the acoustical behavior of the microphone device 100 more excellent.
Compared with prior art, in microphone device of the invention, the voice coil is connect with the vibrating diaphragm, while making the bullet
Property support component and the vibrating diaphragm interval be arranged；It will be set in the support frame of a whole cyclic structure around the voice coil
It sets, meanwhile, the vibrating diaphragm is fixed in described support frame one end, the other end is fixed on the resilient support assemblies.I.e. should
Structure makes the resilient support assemblies by connecting the vibrating diaphragm between the support frame, and with the voice coil interval and not straight
It connects in succession, on the one hand eliminates the limitation when resilient support assemblies are directly connected to the voice coil to the voice coil, it is described
Voice coil height is no longer limited by the resilient support assemblies, the microphone device whole height can design it is more frivolous, separately
On the one hand influence of the resilient support assemblies to the magnetic gap is eliminated simultaneously, to eliminate the design to magnetic circuit system
Limitation, keep magnetic circuit more excellent, effectively increase the acoustical behavior of the 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 (10)
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；The vibrational system include the vibrating diaphragm for being fixed on the frame, be fixed on the vibrating diaphragm and be inserted in the magnetic gap with
It drives the voice coil of the diaphragm oscillations sounding and is fixed on the frame and elasticity opposite and spaced with the vibrating diaphragm
Support component, which is characterized in that the microphone device further includes the support frame with the voice coil interval, and the support frame is in
One whole cyclic structure is simultaneously arranged around the voice coil, and the vibrating diaphragm is fixed in described support frame one end, and the other end is fixed
In the resilient support assemblies.
2. microphone device according to claim 1, which is characterized in that the magnetic circuit system includes magnetic bowl and is fixed on described
Magnet steel in magnetic bowl, the magnet steel and the magnetic bowl are spaced to form the magnetic gap, and the support frame is set around the magnetic bowl
Set and with magnetic bowl interval.
3. microphone device according to claim 2, which is characterized in that the support frame is located at the frame and the magnetic
Between bowl.
4. microphone device according to claim 2, which is characterized in that the support frame is inserted in the magnetic gap；Institute
Magnetic bowl is stated to include bottom wall, the side wall extended from the bottom wall periphery to vibrational system direction bending and be opened in the side
The fracture of wall, the resilient support assemblies are through the fracture and extend to the support frame far from described vibrating diaphragm one end company
It connects.
5. microphone device according to claim 2, which is characterized in that the resilient support assemblies include one and are in one whole
The ring structure of body.
6. microphone device according to claim 5, which is characterized in that the resilient support assemblies include elastic component and patch
Set on the auxiliary vibrating diaphragm of the elastic component；The elastic component includes annular in shape and is fixed on the first fixed arm of the frame, is in
It is cyclic annular and with spaced second fixed arm of first fixed arm and connect first fixed arm and described second and consolidates
The elastic arm of fixed arm, second fixed arm are fixed with the support frame；The auxiliary vibrating diaphragm includes the arc-shaped structure in cross section
Ring, the first connecting portion and second connecting portion that are each extended over by the opposite sides of the ring, the first connecting portion with
First fixed arm is fixedly connected, and the second connecting portion and the side far from the vibrating diaphragm of second fixed arm are fixed
Connection, and it is oppositely arranged the ring with the elastic arm.
7. microphone device according to claim 6, which is characterized in that the support frame along the diaphragm oscillations direction to
The orthographic projection in second fixed arm direction is fallen on second fixed arm.
8. microphone device according to claim 6, which is characterized in that the elastic supporting member for supporting optical member is flexible circuit board.
9. microphone device according to claim 2, which is characterized in that the frame includes frame side wall and by the frame
The frame stabilizer blade that side wall is extended to form to one end far from the vibrational system；The magnetic bowl includes bottom wall and by bottom wall week
The side wall and support direction to extend from the bottom wall periphery to the frame that edge extends to vibrational system direction bending
Wall extension；The magnet steel and the sidewall spacers form the magnetic gap, and the wall extension is fixed on the frame stabilizer blade.
10. microphone device according to claim 9, which is characterized in that the frame stabilizer blade includes four and interval is arranged,
The wall extension includes four, and the wall extension is arranged with each frame stabilizer blade face, each described wall extension connection
In the frame stabilizer blade with its face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811161141.6A CN109275074B (en) | 2018-09-30 | 2018-09-30 | Sound production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811161141.6A CN109275074B (en) | 2018-09-30 | 2018-09-30 | Sound production device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109275074A true CN109275074A (en) | 2019-01-25 |
| CN109275074B CN109275074B (en) | 2020-12-22 |
Family
ID=65195102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811161141.6A Expired - Fee Related CN109275074B (en) | 2018-09-30 | 2018-09-30 | Sound production device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109275074B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111405431A (en) * | 2019-12-27 | 2020-07-10 | 瑞声科技(新加坡)有限公司 | Sound production device and loudspeaker box thereof |
| WO2021258829A1 (en) * | 2020-06-24 | 2021-12-30 | 朱达云 | Elastic piece and loudspeaker |
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| CN111405431A (en) * | 2019-12-27 | 2020-07-10 | 瑞声科技(新加坡)有限公司 | Sound production device and loudspeaker box thereof |
| CN111405431B (en) * | 2019-12-27 | 2021-07-09 | 瑞声科技(新加坡)有限公司 | Sound production device and loudspeaker box thereof |
| WO2021258829A1 (en) * | 2020-06-24 | 2021-12-30 | 朱达云 | Elastic piece and loudspeaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109275074B (en) | 2020-12-22 |
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