CN108055623A - Microphone device - Google Patents
Microphone device Download PDFInfo
- Publication number
- CN108055623A CN108055623A CN201711107049.7A CN201711107049A CN108055623A CN 108055623 A CN108055623 A CN 108055623A CN 201711107049 A CN201711107049 A CN 201711107049A CN 108055623 A CN108055623 A CN 108055623A
- Authority
- CN
- China
- Prior art keywords
- voice coil
- microphone device
- fixed
- magnet steel
- ring portion
- 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
- 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
- H04R9/045—Mounting
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The present invention provides a kind of microphone device, including frame, vibrational system and magnetic circuit system, the conducting terminal for being fixed on the frame, ring portion and conductive sheet；The vibrational system includes vibrating diaphragm and drives the voice coil of the diaphragm oscillations, and the voice coil is electrically connected with the conducting terminal；The magnetic circuit system includes yoke, main magnet steel and respectively positioned at two of opposite sides secondary magnet steel of the main magnet steel；The ring portion is made of insulating materials and is respectively arranged at the another opposite sides of main magnet steel, and the conductive sheet is embedded in the ring portion；Two ring portions are with two secondary magnet steel in staggeredly interval setting, ring portion one side is fixedly connected with frame insulation, its opposite side is fixedly connected with the insulation of one end away from the vibrating diaphragm of the voice coil, and the voice coil and the conducting terminal are electrically connected respectively with the conductive sheet.Compared with correlation technique, microphone device good reliability of the invention 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 technology】
With the arrival in mobile Internet epoch, the quantity of Intelligent mobile equipment constantly rises.And in numerous mobile equipment
Among, mobile phone is undoubtedly most common, most portable mobile terminal device.At present, the function of mobile phone is extremely various, one of them is just
It is the music function of high-quality, therefore, the microphone device for playing sound is widely applied Intelligent mobile equipment till now
Among.
The microphone device of correlation technique is included described in frame, the vibrational system for being individually fixed in the frame and driving
The magnetic circuit system of vibrational system vibration sounding, the vibrational system include being fixed on the vibrating diaphragm of the frame and drive the vibrating diaphragm
The voice coil and voice coil leads of vibration, the magnetic circuit system include being fixed on the yoke of the frame, are fixedly installed in the yoke
Main magnet steel and around the main magnet steel and spaced four secondary magnet steel, two neighboring pair magnet steel is arranged at intervals.
However, in the microphone device of correlation technique, the voice coil leads are needed by the interval between two neighboring secondary magnet steel
Place is drawn, because magnetic circuit system includes five magnet steel so that the space that the voice coil leads are drawn is smaller, existing broken string risk
Height influences its reliability；In addition, the vibration membrane type of the structure inhibits limited, the easy swing of the vibrational system causes bad.
Therefore, a kind of new microphone device must be provided by, which having in fact, solves above-mentioned technical problem.
【The content of the invention】
It is an object of the invention to provide a kind of good reliability and the excellent microphone devices of acoustical behavior.
In order to achieve the above object, the present invention provides a kind of microphone device, including frame, it is individually fixed in the frame
Vibrational system and magnetic circuit system, the conducting terminal for being fixed on the frame, two ring portions and conductive sheet；The vibration system
System includes the vibrating diaphragm for being fixed on the frame and the voice coil for driving the diaphragm oscillations, and the voice coil is electrically connected with the conducting terminal
It connects；The magnetic circuit system includes being fixed on the yoke of the frame and fixing assembling in the main magnet steel of the yoke and around institute
State two secondary magnet steel that main magnet steel sets and is located at the opposite sides of the main magnet steel respectively；Two ring portions are by insulation material
Material is made and is respectively arranged at the another opposite sides of main magnet steel, and the conductive sheet is embedded at respectively in the ring portion；Two
The ring portion is arranged at intervals with two secondary magnet steel in interlocking, ring portion one side and the fixed company of frame insulation
It connects, opposite side is fixedly connected with the insulation of one end away from the vibrating diaphragm of the voice coil, the voice coil and the conducting terminal
It is electrically connected respectively with the conductive sheet.
Preferably, the ring portion includes elastic portion and the first fixation each extended over by the opposite sides of the elastic portion
Portion and the second fixed part, first fixed part are fixed on frame, and second fixed part is fixed on the voice coil.
Preferably, the arc-shaped structure in the cross section of the elastic portion or wavy shaped configuration or hollow annular structure.
Preferably, the microphone device further includes first connecting portion and second connecting portion, and the first connecting portion is by described in
First fixed part is fixed on the frame, and second fixed part is fixed on the voice coil by the second connecting portion.
Preferably, the ring portion is made of silica gel.
Preferably, the conductive sheet includes body and the first pad each extended over by the both ends of the body and second welds
Disk, the body are embedded in the ring portion, and first pad and second pad are respectively exposed to the ring portion,
The conducting terminal is electrically connected with first pad fixation, and the voice coil is electrically connected with second pad fixation.
Preferably, first pad and second pad are respectively exposed to the separate vibrating diaphragm in the ring portion
One side.
Preferably, the conductive sheet is copper foil.
Preferably, the enameled wire that the voice coil is made is pure copper wire or copper-clad aluminum conductor.
Preferably, the magnetic circuit system is in rectangular configuration, and two ring portions are respectively positioned at the main magnet steel along short
The opposite sides of axis.
Compared with correlation technique, microphone device of the invention adds the ring portion and is embedded at the described of the ring portion
Conductive sheet, and the voice coil and the conducting terminal is made to be electrically connected respectively with this conductive sheet, so that the conductive sheet substitutes
Voice coil lead structure, avoids the phenomenon that voice coil leads collide the magnetic circuit system in diaphragm oscillations in correlation technique, from
And the problem of having evaded voice coil leads broken string completely, high degree improves the reliability of the microphone device；Because of the ring
Portion is made of insulating materials and with elasticity, when the frame is fixed in its one side, and opposite side fixes the support voice coil, increases
The support of the vibrational system is added, it is therefore prevented that the side-sway of the voice coil effectively improves the stability of the vibrational system, changes
It has been apt to the acoustical behavior of the microphone device.
【Description of the drawings】
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, the accompanying drawings in the following description is only some embodiments of the present 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, wherein：
Fig. 1 is the dimensional structure diagram 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 the structure diagram in the ring portion of microphone device of the present invention；
Fig. 5 is the structure diagram of the conductive sheet of microphone device of the present invention.
【Specific embodiment】
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only the part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained all other without making creative work
Embodiment belongs to the scope of protection of the invention.
Please refer to Fig. 1-3, the present invention provides a kind of microphone device 100, including frame 1, vibrational system 2, magnetic circuit
System 3, conducting terminal 4, ring portion 5 and conductive sheet 6.
The vibrational system 2 and the magnetic circuit system 3 are individually fixed in the frame 1, are driven by the magnetic circuit system 3
2 vibration sounding of vibrational system.
The vibrational system 2 includes the voice coil 22 for being fixed on the vibrating diaphragm 21 of the frame 1 and the vibrating diaphragm 21 being driven to vibrate.
The magnetic circuit system 3 includes being fixed on the yoke 31 of the frame 1, fixing assembling in the main magnet steel of the yoke 31
It 32 and is set around the main magnet steel 32 and respectively positioned at two of opposite sides secondary magnet steel 33 of the main magnet steel 32.
The pair magnet steel 33 forms magnetic gap (non-label) with the main interval of magnet steel 32, and the voice coil 22 is inserted into and suspends
In in the magnetic gap.
The conducting terminal 4 is fixed on the frame 1, and the conducting terminal 4 is electrically connected with the voice coil 22, the voice coil
22 by generating electromagnetic field jointly after the conducting terminal 4 connection external power supply with the magnetic circuit system 3 so that the voice coil 22
It moves back and forth, and then drives 21 vibration sounding of vibrating diaphragm.
The ring portion 5 includes two, and two ring portions 5 are made of insulating materials and are respectively arranged at the main magnetic
32 another opposite sides of steel.That is two ring portions 5 and two secondary magnet steel 33 are in being staggeredly arranged at intervals, jointly around described
Main magnet steel 32 is set.
In present embodiment, the magnetic circuit system 3 is in rectangular configuration, and two ring portions 5 are located at the main magnetic respectively
The opposite sides along short axle of steel 32.The ring portion 5 is made of silica gel, its certain material is without being limited thereto.
5 one side of ring portion is fixedly connected with the frame 1 insulation, and opposite side is with the voice coil 22 away from described
One end insulation of vibrating diaphragm 21 is fixedly connected.The structure causes the ring portion 5 forms institute's Xi'an voice coil 22 to support, and adds
The support force of the vibrational system 2, it is therefore prevented that the side-sway of the voice coil 22 effectively improves the stability of the vibrational system 2,
Improve the acoustical behavior of the microphone device 100.
Incorporated by reference to joining shown in Fig. 4, specifically, the ring portion 5 includes elastic portion 51 and by the opposite of the elastic portion 51
The first fixed part 52 and the second fixed part 53 that both sides each extend over.
First fixed part 52 is fixed on frame 1, and second fixed part 53 is fixed on the separate institute of the voice coil 22
One end of vibrating diaphragm 21 is stated, is supported so as to be formed to the voice coil 22, realizes the purpose for preventing 22 side-sway of voice coil.Simultaneously because of the bullet
The elastic reaction in property portion 51 strengthens the vibration performance of the vibrational system 2, so as to improve the sound of the microphone device 100
Learn performance.
In order to ensure effective oscillation space of the voice coil 22, in present embodiment, the microphone device 100 is additionally provided with
One connecting portion 7 and second connecting portion 8.First fixed part 52 is fixed on the frame 1 by the first connecting portion 7, described
Second fixed part 53 is fixed on the voice coil 22 by second connecting portion 8.Pass through the first connecting portion 7 and described first
Connecting portion 8 carries out the ring portion 5 padded to 31 direction of yoke, enough is effectively shaken with ensuring that the voice coil 22 has
Dynamic space.
In present embodiment, the structure of the elastic portion 51 is unlimited, the arc-shaped structure in cross section of the elastic portion 51 or
Wavy shaped configuration or hollow annular structure etc., this is all feasible.
For example, the elastic portion 51 include it is at least one by it close to lateral 21 direction of vibrating diaphragm of the yoke 31
Recess and/or the curved slot arrangement formed that is recessed by it close to lateral 31 direction of yoke of the vibrating diaphragm 21.When described
Curved slot arrangement include two have recess direction it is opposite when, then the elastic portion 51 forms serpentine；When the curved slot arrangement bag
When including three or more, then the elastic portion 51 forms waveform.
For another example, when the cross section of the elastic portion 51 is in hollow annular structure, integrally can be rounded or oval etc..
The conductive sheet 6 is correspondingly arranged as two and is embedded at respectively in the ring portion 5 with the ring portion 5.This reality
It applies in mode, the ring portion 5 can be structure as a whole, or double-layer structure.For example, when the ring portion 5 ties to be double-deck
During structure, after double-layer overlapped is set, the conductive sheet 6 is embedded between the double-layer structure.
The voice coil 22 and the conducting terminal 4 are electrically connected respectively with the conductive sheet 6, so as to form the conducting terminal
4 introduce the structure of power supply for the voice coil 22.I.e. described conducting terminal 4 is instead of voice coil lead structure of the prior art.It should
Structure avoids the phenomenon that voice coil leads collide magnetic circuit system 3 when the vibrating diaphragm 21 vibrates in correlation technique, so as to complete
Full the problem of having evaded voice coil leads broken string, high degree improves the reliability of the microphone device 100.
Incorporated by reference to shown in Fig. 5, specifically, the conductive sheet 6 includes body 61 and is prolonged respectively by the both ends of the body 61
The first pad 62 and the second pad 63 stretched.In present embodiment, the conductive sheet 6 is copper foil.
The body 61 is embedded in the ring portion 5；First pad 62 and second pad 63 are distinguished exposed
In the ring portion 5, the conducting terminal 4 is electrically connected with first pad 62 fixation, the voice coil 22 and the described second weldering
Disk 63 fixes electrical connection, so as to fulfill the voice coil 22 and the electric connection structure of the conducting terminal 4.
More preferably, first pad 62 and second pad 63 are respectively exposed to the separate described of the ring portion 5
The one side of vibrating diaphragm 21, the structure more make full use of space.
On the basis of said structure, in present embodiment, the sound is made around being made to by enameled wire because of the voice coil 22
The enameled wire of circle 22 is pure copper wire or copper-clad aluminum conductor, which effectively increases the sensitivity of the microphone device 100 so that institute
The acoustical behavior for stating microphone device 100 is more excellent.
Compared with correlation technique, microphone device of the invention adds the ring portion and is embedded at the described of the ring portion
Conductive sheet, and the voice coil and the conducting terminal is made to be electrically connected respectively with this conductive sheet, so that the conductive sheet substitutes
Voice coil lead structure, avoids the phenomenon that voice coil leads collide the magnetic circuit system in diaphragm oscillations in correlation technique, from
And the problem of having evaded voice coil leads broken string completely, high degree improves the reliability of the microphone device；Because of the ring
Portion is made of insulating materials and with elasticity, when the frame is fixed in its one side, and opposite side fixes the support voice coil, increases
The support of the vibrational system is added, it is therefore prevented that the side-sway of the voice coil effectively improves the stability of the vibrational system, changes
It has been apt to 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 the protection model of the present invention
It encloses.
Claims (10)
1. a kind of microphone device, including frame, it is individually fixed in the vibrational system of the frame and magnetic circuit system and is fixed on
The conducting terminal of the frame, the vibrational system include being fixed on the vibrating diaphragm of the frame and drive the sound of the diaphragm oscillations
Circle, the voice coil are electrically connected with the conducting terminal；The magnetic circuit system includes being fixed on the yoke of the frame and fixed dress
The two of the opposite sides that main magnet steel and the circular main magnet steel assigned in the yoke set and be located at the main magnet steel respectively
It is a pair magnet steel, which is characterized in that the microphone device further include be respectively arranged at the another opposite sides of main magnet steel by insulating
Two ring portions made of material and the conductive sheet being embedded at respectively in the ring portion, two ring portions with described in two
In being staggeredly arranged at intervals, ring portion one side is fixedly connected secondary magnet steel with frame insulation, opposite side and the voice coil
Away from the vibrating diaphragm one end insulation be fixedly connected, the voice coil and the conducting terminal are electrically connected respectively with the conductive sheet
It connects.
2. microphone device according to claim 1, which is characterized in that the ring portion includes elastic portion and by the elasticity
The first fixed part and the second fixed part that the opposite sides in portion each extends over, first fixed part are fixed on frame, and described
Two fixed parts are fixed on the voice coil.
3. microphone device according to claim 2, which is characterized in that the arc-shaped structure in cross section or ripple of the elastic portion
Shape wave structure or hollow annular structure.
4. microphone device according to claim 2, which is characterized in that the microphone device further includes first connecting portion and
First fixed part is fixed on the frame by two connecting portions, the first connecting portion, and the second connecting portion is by described
Two fixed parts are fixed on the voice coil.
5. microphone device according to claim 1, which is characterized in that the ring portion is made of silica gel.
6. microphone device according to claim 1, which is characterized in that the conductive sheet includes body and by the body
The first pad and the second pad that both ends each extend over, the body are embedded in the ring portion, first pad and institute
It states the second pad and is respectively exposed to the ring portion, the conducting terminal is electrically connected with first pad fixation, the voice coil
It is electrically connected with second pad fixation.
7. microphone device according to claim 6, which is characterized in that first pad and second pad are outer respectively
It is exposed to the one side away from the vibrating diaphragm in the ring portion.
8. microphone device according to claim 1, which is characterized in that the conductive sheet is copper foil.
9. microphone device according to claim 1, which is characterized in that the enameled wire that the voice coil is made is pure copper wire or copper
Alclad line.
10. microphone device according to claim 1, which is characterized in that the magnetic circuit system is in rectangular configuration, described in two
Ring portion is located at the opposite sides along short axle of the main magnet steel respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711107049.7A CN108055623B (en) | 2017-11-10 | 2017-11-10 | Sound production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711107049.7A CN108055623B (en) | 2017-11-10 | 2017-11-10 | Sound production device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108055623A true CN108055623A (en) | 2018-05-18 |
| CN108055623B CN108055623B (en) | 2021-01-15 |
Family
ID=62120154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711107049.7A Expired - Fee Related CN108055623B (en) | 2017-11-10 | 2017-11-10 | Sound production device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108055623B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111405424A (en) * | 2019-12-27 | 2020-07-10 | 瑞声科技(新加坡)有限公司 | Sound production device |
| WO2021134271A1 (en) * | 2019-12-30 | 2021-07-08 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| CN114302308A (en) * | 2021-12-14 | 2022-04-08 | 浙江豪声电子科技股份有限公司 | Super linear loudspeaker and test equipment thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005244730A (en) * | 2004-02-27 | 2005-09-08 | Star Micronics Co Ltd | Electroacoustic transducer |
| CN104853304A (en) * | 2015-04-23 | 2015-08-19 | 歌尔声学股份有限公司 | Silicone vibrating diaphragm, receiver module and method for processing silicone vibrating diaphragm |
| CN205491130U (en) * | 2016-01-28 | 2016-08-17 | 瑞声光电科技(常州)有限公司 | Micro sound production device |
| CN205847562U (en) * | 2016-06-15 | 2016-12-28 | 瑞声科技(新加坡)有限公司 | Mini-sound device |
| CN205864733U (en) * | 2016-06-15 | 2017-01-04 | 瑞声声学科技(常州)有限公司 | Mini-sound device |
-
2017
- 2017-11-10 CN CN201711107049.7A patent/CN108055623B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005244730A (en) * | 2004-02-27 | 2005-09-08 | Star Micronics Co Ltd | Electroacoustic transducer |
| CN104853304A (en) * | 2015-04-23 | 2015-08-19 | 歌尔声学股份有限公司 | Silicone vibrating diaphragm, receiver module and method for processing silicone vibrating diaphragm |
| CN205491130U (en) * | 2016-01-28 | 2016-08-17 | 瑞声光电科技(常州)有限公司 | Micro sound production device |
| CN205847562U (en) * | 2016-06-15 | 2016-12-28 | 瑞声科技(新加坡)有限公司 | Mini-sound device |
| CN205864733U (en) * | 2016-06-15 | 2017-01-04 | 瑞声声学科技(常州)有限公司 | Mini-sound device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111405424A (en) * | 2019-12-27 | 2020-07-10 | 瑞声科技(新加坡)有限公司 | Sound production device |
| WO2021134271A1 (en) * | 2019-12-30 | 2021-07-08 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| CN114302308A (en) * | 2021-12-14 | 2022-04-08 | 浙江豪声电子科技股份有限公司 | Super linear loudspeaker and test equipment thereof |
| CN114302308B (en) * | 2021-12-14 | 2022-08-05 | 浙江豪声电子科技股份有限公司 | Super linear loudspeaker and test equipment thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108055623B (en) | 2021-01-15 |
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Granted publication date: 20210115 Termination date: 20211110 |