CN109275075A - Microphone device - Google Patents
Microphone device Download PDFInfo
- Publication number
- CN109275075A CN109275075A CN201811162942.4A CN201811162942A CN109275075A CN 109275075 A CN109275075 A CN 109275075A CN 201811162942 A CN201811162942 A CN 201811162942A CN 109275075 A CN109275075 A CN 109275075A
- Authority
- CN
- China
- Prior art keywords
- fixed
- voice coil
- vibrating diaphragm
- frame
- microphone device
- 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
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
- 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
Abstract
The present invention provides a kind of microphone devices comprising frame, vibrational system and the magnetic circuit system with magnetic gap；Vibrational system include the vibrating diaphragm for being fixed on frame, drive diaphragm oscillations sounding voice coil, be fixed on frame and resilient support assemblies opposite and spaced with vibrating diaphragm and with the spaced support frame of voice coil, support frame one end is connect with vibrating diaphragm, and the other end is connect with resilient support assemblies；Support frame includes two, and two support frames are located at the opposite sides of voice coil, the rounded rectangle of voice coil and including four straight flanges and four fillets for being separately connected two neighboring straight flange, and the fillet of the straight flange and the straight flange both ends of support frame and voice coil is oppositely arranged.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 acoustic-electric field 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 the intelligent slidings such as mobile phone till now
Among dynamic equipment.
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 sounding；The vibrational system includes the vibrating diaphragm for being fixed on the frame, the driving diaphragm oscillations
The voice coil of sounding and and interval opposite with the vibrating diaphragm are arranged and the voice coil are supported in the resilient support group of the frame
Part.
However, the vibrating diaphragm and the resilient support assemblies are individually fixed in institute in the microphone device of 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 to provide the microphone devices that a kind of stability is good and acoustical behavior is excellent.
In order to achieve the above objectives, the present invention provides a kind of microphone device comprising frame and is individually fixed in the frame
Vibrational system and magnetic circuit system with magnetic gap；The vibrational system includes the vibrating diaphragm for being fixed on the frame, is fixed on
The vibrating diaphragm and be inserted in the magnetic gap with drive the voice coil of the diaphragm oscillations sounding, be fixed on the frame and with it is described
Vibrating diaphragm is opposite and spaced resilient support assemblies and with the spaced support frame of the voice coil；The support frame
One end is connect with the vibrating diaphragm, and the other end is connect with the resilient support assemblies；The support frame includes two, two institutes
It states the opposite sides that support frame is located at the voice coil, the rounded rectangle of the voice coil and connects including four straight flanges and respectively
Four fillets of two neighboring straight flange are connect, the support frame is opposite with the fillet of the straight flange of the voice coil and the straight flange both ends to be set
It sets.
Preferably, two support frames are located at the inside of the voice coil.
Preferably, two support frames are located at the outside of the voice coil.
Preferably, side of side of the resilient support assemblies far from the vibrating diaphragm than the voice coil far from the vibrating diaphragm
It is farther apart from the vibrating diaphragm.
Preferably, the resilient support assemblies are enclosed jointly sets to form a hollow region, and the voice coil is far from the vibrating diaphragm
One end is located within the scope of the hollow region.
Preferably, the arc-shaped structure of the support frame.
Preferably, the resilient support assemblies include two and are located at the opposite sides of the voice coil, each described
Resilient support assemblies include the auxiliary vibrating diaphragm far from the vibrating diaphragm side that the elastic component is fixed in elastic component and fitting, described
Support frame is fixed on the side close to the vibrating diaphragm of the elastic component.
Preferably, the elastic component include the first fixed arm for being fixed on the frame, support be fixed on it is ipsilateral with it
Second fixed arm of the support frame and extend from first fixed arm to second fixed arm and with described second
The elastic arm of fixed arm connection；The auxiliary vibrating diaphragm includes the ring of the arc-shaped structure in cross section, by the opposite sides of the ring
The first connecting portion and second connecting portion each extended over, the first connecting portion are fixed on the separate described of first fixed arm
The side of support frame, the second connecting portion are fixed on the side far from the support frame of second fixed arm, and
It is oppositely arranged the ring with the elastic arm；The support frame is fixed on second fixed arm.
Preferably, the elastic component is flexible circuit board.
Preferably, the magnetic circuit system includes that magnetic yoke, the main magnet steel for being fixed on the magnetic yoke and being respectively separated is set to
The main magnet steel opposite sides and two secondary magnet steel that the magnetic gap is formed with the main magnet steel, two secondary magnet steel difference
Between two resilient support assemblies.
Preferably, two secondary magnet steel are located at the long axis two sides of the voice coil, and two resilient support assemblies are located at
The short axle two sides of the voice coil.
Preferably, the magnetic circuit system further includes upper clamp plate, and the upper clamp plate includes be fixed on the frame annular in shape
Fixed ring and two pole pieces being extended by the fixed circumferential secondary magnet steel, two pole pieces be stacked at two institutes respectively
State secondary magnet steel.
Compared with the relevant technologies, the vibrational system of microphone device of the invention further includes and the spaced branch of the voice coil
Support bone frame, described support frame one end are connect with the vibrating diaphragm, and the other end is connect with the resilient support assemblies；The support
Skeleton includes two, and two support frames are located at the opposite sides of the voice coil, the rounded rectangle packet of voice coil
Include four straight flanges and four fillets for being separately connected two neighboring straight flange, the straight flange of the support frame and the voice coil and this directly
The fillet at side both ends is oppositely arranged.The structure makes the resilient support assemblies and the vibrating diaphragm be connected to the support frame,
The height of the voice coil is no longer limited by the oscillation space of the resilient support assemblies, and the whole height of the microphone device can be with
That designs is more frivolous；Simultaneously because the voice coil does not contact the resilient support assemblies, the voice coil and magnetic circuit will not influence
Gap between system, magnetic circuit system can realize maximized more three magnetic structures of magnet steel, finally effectively increase the sounding
The acoustical behavior of 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 stereochemical structure decomposing schematic representation of microphone device of the present invention；
Fig. 3 is the elevational schematic view of the part isometric structure of microphone device of the present invention；
Fig. 4 is the cut-away view of the line A-A along Fig. 1；
Fig. 5 is the schematic perspective view of the vibrational system of microphone device of the present invention；
Fig. 6 is the enlarged drawing of part shown in B in Fig. 5；
Fig. 7 is the schematic perspective view of the resilient support assemblies of microphone device of the present invention；
Fig. 8 is the stereochemical structure decomposing schematic representation of the resilient support assemblies of microphone device of the present invention；
Fig. 9 is the schematic perspective view of the support frame 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.
It please join shown in Fig. 1-9, the present invention provides a kind of microphone device 100 comprising frame 1 is individually fixed in the basin
The vibrational system 2 and magnetic circuit system 3 of frame 1.
The frame 1 is used to support the vibrational system 2 and the magnetic circuit system 3, and the magnetic circuit system 3 is for driving institute
State 2 vibration sounding of vibrational system.
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
22, it is fixed on the frame 1 and opposite and spaced resilient support assemblies 23 and support frame 24 with the vibrating diaphragm 21.
The magnetic circuit system 3 has magnetic gap 36, and the voice coil 22 is inserted in the magnetic gap 36.
In present embodiment, the support frame 24 include two and arc-shaped structure, described 24 one end of support frame with
The vibrating diaphragm 21 connects, and the other end is connect with the resilient support assemblies 23；Two support frames 24 are located at institute
The opposite sides of voice coil 22 is stated, the rounded rectangle of the voice coil 22 includes four straight flanges and is separately connected the four of two neighboring straight flange
A fillet, the support frame 24 are oppositely arranged with the straight flange of the voice coil 22 and the fillet at the straight flange both ends.The structure makes
The resilient support assemblies 23 and the vibrating diaphragm 21 are connected to the support frame 24, and the height of the voice coil 22 is no longer limited by
The oscillation space of the resilient support assemblies 23, the whole height of the microphone device 100 can design more frivolous；Simultaneously
Since the voice coil 22 does not contact the resilient support assemblies 23, the gap between the voice coil 22 and magnetic circuit, magnetic will not influence
Road system 3 can realize maximized more three magnetic structures of magnet steel, finally effectively increase the acoustics of the microphone device 100
Energy.
Two support frames 24 are located at the outside of the voice coil 22.Certainly, two support frames 24 are also
It can be located separately the inside of the voice coil 22.Present embodiment is only located at the voice coil 22 with two support frames 24
Outside for be illustrated.
Side of the resilient support assemblies 23 far from the vibrating diaphragm 21 than the voice coil 22 far from the vibrating diaphragm 21 one
Vibrating diaphragm 21 described in lateral extent is farther.The resilient support assemblies 23 and the bottom end of the voice coil 22 be not concordant under the structure.
The resilient support assemblies 23 are enclosed jointly to be set to form a hollow region 10, and the voice coil 22 is far from the vibrating diaphragm 21
One end is located in 10 range of hollow region.So that the design of voice coil 22 is not by it between the resilient support assemblies 23
Space limitation, avoids influence of the resilient support assemblies 23 to magnetic circuit.
In present embodiment, the resilient support assemblies 23 include two and are located at opposite the two of the voice coil 22
The voice coil 22 is supported in the frame by two support frames 24 respectively by side, two resilient support assemblies 23
1.The setting of double spring support component 23 forms symmetrical structure, more stable to the support effect of the voice coil 22, and anti-voice coil 22 is horizontal
To swinging, effect is more excellent.
Each resilient support assemblies 23 include the separate institute that the elastic component 231 is fixed in elastic component 231 and fitting
The auxiliary vibrating diaphragm 232 of 21 side of vibrating diaphragm is stated, the support frame 24 is fixed on the close vibrating diaphragm 21 of the elastic component 231
Side.The resilient support assemblies 23 are to weaken the vibrational system 2 waving in the operating condition.
Specifically, the elastic component 231 is flexible circuit board, the voice coil 22 is electrically connected with the elastic component 231.One side
Face is used to provide the support to the voice coil 22, on the other hand introduces external electric signal for the voice coil 22, avoids by drawing
Line is the problem of being easy broken string when the voice coil 22 introduces external electric signal, to improve its reliability.
The elastic component 231 include be fixed on the frame 1 the first fixed arm 2311, support be fixed on it is ipsilateral with it
Second fixed arm 2312 of the support frame 24 and prolonged from first fixed arm 2311 to second fixed arm 2312
The elastic arm 2313 stretched and connect with second fixed arm 2312；The auxiliary vibrating diaphragm 232 includes the arc-shaped structure in cross section
Ring 2321, the first connecting portion 2322 and second connecting portion 2323 each extended over by the opposite sides of the ring 2321, institute
The side far from the support frame 24 that first connecting portion 2322 is fixed on first fixed arm 2311 is stated, described second connects
Socket part 2323 is fixed on the side far from the support frame 24 of second fixed arm 2312, and make the ring 2321 with
The elastic arm 2313 is oppositely arranged；The support frame 24 is fixed on second fixed arm 2312.The bullet under this kind of structure
Property support component 23 does not influence magnetic gap, the design of magnetic circuit system is optimized, so that the acoustical behavior of the microphone device 100
It is more excellent, while the setting of the resilient support assemblies 23 is convenient for the stability of the promotion vibrational system 2.
The magnetic circuit system 3 includes magnetic yoke 31, is fixed on the main magnet steel 32 of the magnetic yoke 31 and is respectively separated and be set to
32 opposite sides of main magnet steel and two secondary magnet steel 33 that the magnetic gap 36 is formed with the main magnet steel 32；Two pairs
Magnet steel 33 is located between two resilient support assemblies 23.
Voice coil 22 described in present embodiment is in rectangular configuration with rounded corners, and two secondary magnet steel 33 are located at the sound
The long axis two sides of circle 22, two resilient support assemblies 23 are located at the short axle two sides of the voice coil 22.At this point, the magnetic circuit system
System 3 forms the magnetic structure of three magnet steel, and the more single magnetic steel magnetic circuit structure of driveability is stronger.
It should be noted that two secondary magnet steel 33 can also respectively with two 23 position phases of resilient support assemblies
Together, the short axle two sides of the voice coil 22 are respectively positioned on, this is also feasible.
In order to further increase the performance of the magnetic circuit system 3, make the magnetic line of force quilt as much as possible of the magnetic circuit system 3
The voice coil 22 is cut, and to form bigger driving force magnetic circuit space, the magnetic circuit system 3 further includes upper clamp plate 34, it is described on
Clamping plate 34 includes being fixed on the fixed ring 341 annular in shape of the frame 1 and being prolonged from the fixed ring 341 to the secondary magnet steel 33
Two pole pieces 342 stretched, two pole pieces 342 are stacked at two secondary magnet steel 33 respectively.
Compared with the relevant technologies, the vibrational system of microphone device of the invention further includes and the spaced branch of the voice coil
Support bone frame, described support frame one end are connect with the vibrating diaphragm, and the other end is connect with the resilient support assemblies；The support
Skeleton includes two, and two support frames are located at the opposite sides of the voice coil, the rounded rectangle packet of voice coil
Include four straight flanges and four fillets for being separately connected two neighboring straight flange, the straight flange of the support frame and the voice coil and this directly
The fillet at side both ends is oppositely arranged.The structure makes the resilient support assemblies and the vibrating diaphragm be connected to the support frame,
The height of the voice coil is no longer limited by the oscillation space of the resilient support assemblies, and the whole height of the microphone device can be with
That designs is more frivolous；Simultaneously because the voice coil does not contact the resilient support assemblies, the voice coil and magnetic circuit will not influence
Gap between system, magnetic circuit system can realize maximized more three magnetic structures of magnet steel, finally effectively increase the sounding
The acoustical behavior of 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 (12)
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 vibrational system further includes and the spaced support frame of the voice coil, the support rib
Frame one end is connect with the vibrating diaphragm, and the other end is connect with the resilient support assemblies；The support frame includes two, two
The support frame is located at the opposite sides of the voice coil, and the rounded rectangle of voice coil includes four straight flanges and connects respectively
Four fillets of two neighboring straight flange are connect, the support frame is opposite with the fillet of the straight flange of the voice coil and the straight flange both ends to be set
It sets.
2. microphone device according to claim 1, which is characterized in that two support frames are located at the voice coil
Inside.
3. microphone device according to claim 1, which is characterized in that two support frames are located at the voice coil
Outside.
4. microphone device according to claim 1, which is characterized in that the resilient support assemblies far from the vibrating diaphragm one
Side is more farther than vibrating diaphragm described in a lateral extent of the voice coil far from the vibrating diaphragm.
5. microphone device according to claim 1, which is characterized in that the resilient support assemblies are enclosed jointly to be set to be formed in one
Empty region, the voice coil are located within the scope of the hollow region far from one end of the vibrating diaphragm.
6. microphone device according to claim 1, which is characterized in that the arc-shaped structure of support frame.
7. microphone device according to claim 1, which is characterized in that the resilient support assemblies include two and difference position
In the opposite sides of the voice coil, each resilient support assemblies include that the remote of the elastic component is fixed in elastic component and fitting
Auxiliary vibrating diaphragm from the vibrating diaphragm side, the support frame are fixed on the side close to the vibrating diaphragm of the elastic component.
8. microphone device according to claim 7, which is characterized in that the elastic component includes be fixed on the frame
One fixed arm, support are fixed on the second fixed arm of the support frame ipsilateral with it and from first fixed arms to institute
State the elastic arm that the second fixed arm extends and connect with second fixed arm；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 is solid
Due to the side far from the support frame of first fixed arm, the second connecting portion is fixed on second fixed arm
The side far from the support frame, and be oppositely arranged the ring with the elastic arm；The support frame is fixed on institute
State the second fixed arm.
9. microphone device according to claim 7, which is characterized in that the elastic component is flexible circuit board.
10. microphone device according to claim 8, which is characterized in that the magnetic circuit system include magnetic yoke, be fixed on it is described
It the main magnet steel of magnetic yoke and is respectively separated and is set to the main magnet steel opposite sides and forms the magnetic gap with the main magnet steel
Two secondary magnet steel, two secondary magnet steel are located between two resilient support assemblies.
11. microphone device according to claim 10, two secondary magnet steel are located at the long axis two sides of the voice coil, two
The resilient support assemblies are located at the short axle two sides of the voice coil.
12. microphone device according to claim 10, which is characterized in that the magnetic circuit system further includes upper clamp plate, described
Upper clamp plate includes two for being fixed on the fixed ring annular in shape of the frame and being extended by the fixed circumferential secondary magnet steel
Pole piece, two pole pieces are stacked at two secondary magnet steel respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811162942.4A CN109275075B (en) | 2018-09-30 | 2018-09-30 | Sound production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811162942.4A CN109275075B (en) | 2018-09-30 | 2018-09-30 | Sound production device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109275075A true CN109275075A (en) | 2019-01-25 |
| CN109275075B CN109275075B (en) | 2020-12-22 |
Family
ID=65196032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811162942.4A Expired - Fee Related CN109275075B (en) | 2018-09-30 | 2018-09-30 | Sound production device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109275075B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110996226A (en) * | 2019-11-21 | 2020-04-10 | 瑞声科技(新加坡)有限公司 | Sound production device |
| WO2021000156A1 (en) * | 2019-06-30 | 2021-01-07 | 瑞声声学科技(深圳)有限公司 | Sound emission device |
| WO2021168911A1 (en) * | 2020-02-24 | 2021-09-02 | 瑞声声学科技(深圳)有限公司 | Sound generation device |
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| US5099949A (en) * | 1989-03-30 | 1992-03-31 | Pioneer Electronic Corporation | Speaker and manufacturing method therefor |
| US20070060207A1 (en) * | 2003-02-27 | 2007-03-15 | Namiki Seimitsu Houseki Kabushikikaisha | Multifunctional actuator and mobile terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021168911A1 (en) * | 2020-02-24 | 2021-09-02 | 瑞声声学科技(深圳)有限公司 | Sound generation device |
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| Publication number | Publication date |
|---|---|
| CN109275075B (en) | 2020-12-22 |
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