CN108322870A - Microphone device - Google Patents
Microphone device Download PDFInfo
- Publication number
- CN108322870A CN108322870A CN201810108602.7A CN201810108602A CN108322870A CN 108322870 A CN108322870 A CN 108322870A CN 201810108602 A CN201810108602 A CN 201810108602A CN 108322870 A CN108322870 A CN 108322870A
- Authority
- CN
- China
- Prior art keywords
- clamping plate
- frame
- microphone device
- fixed
- magnet steel
- 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
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
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, support are fixed on the magnetic circuit system and clamping plate of the frame；The magnetic circuit system includes being fixed on the yoke of the frame and being fixed on the main magnet steel of the yoke and secondary magnet steel, and the pair magnet steel is around the main magnet steel and is spaced setting；The clamping plate is annular in shape, it, which is embedded, is fixed on the frame, the clamping plate includes the reinforcement ring portion annular in shape being embedded at completely in the frame and the clamping plate portion extended from the reinforcement ring portion to the interior direction of the frame, the clamping plate portion pressure is set to the side far from the yoke of the secondary magnet steel, and clamping plate portion magnetic permeability is more than the magnetic permeability for reinforcing ring portion.Compared with the relevant technologies, microphone device acoustical behavior of the invention is good and reliability is high.
Description
Technical field
The present invention relates to microphone device more particularly to a kind of microphone devices applying to portable electronic product.
Background technology
During the portable equipments fast development such as mobile phone, people are more and more stronger to the Functional Requirement of product,
For microphone device as its important component, performance requirement is higher and higher.
The microphone device of the relevant technologies includes frame, is fixed on the vibrational system and magnetic circuit system of the frame.In order to increase
Add the volume of the magnetic circuit system to increase the acoustical behavior of microphone device, the structure of the frame minimizes, to make to be
The structural strength of the frame is restricted or even its intensity is unstable.Therefore, in frame injection molding annular by carbon steel system
At clamping plate to enhance the structural strength of the frame.
However, due to by the clamping plate thickness and material requirement, non-magnetic part need protrude plastic material system
At the frame plastic cover, to occupy the space of the magnetic circuit system so that the acoustical behavior of the microphone device
It is limited.
Therefore, it is necessary to provide a kind of new microphone device solution above-mentioned technical problem.
Invention content
The purpose of the present invention is overcoming above-mentioned technical problem, the acoustical generator that a kind of acoustical behavior is good and reliability is high is provided
Part.
To achieve the above object, the present invention provides a kind of microphone device, includes frame with receiving space, is fixed on institute
State the magnetic circuit system and clamping plate of receiving space；The magnetic circuit system includes being fixed on the yoke of the frame and being fixed on the magnetic
The main magnet steel of yoke and secondary magnet steel, the pair magnet steel are set to the side of the main magnet steel and are arranged with the main magnet steel interval；Institute
It is annular in shape to state clamping plate, is embedded and is fixed on the frame, the clamping plate includes the reinforcement annular in shape being embedded in the frame
Ring portion and the clamping plate portion extended from the reinforcement ring portion to the interior direction of the frame, the clamping plate portion are attached at the secondary magnetic
The magnetic permeability of the side far from the yoke of steel, the clamping plate portion is more than the magnetic permeability for reinforcing ring portion.
Preferably, the reinforcement ring portion at least partially stainless steel.
Preferably, the clamping plate portion is siderochrome cobalt magnetically soft alloy.
Preferably, the frame includes main wall annular in shape and multiple spaced settings for being extended by the main wall
Supporting walls, the reinforcement ring portion is embedded at the main wall, and the supporting walls are fixed in the clamping plate portion.
Preferably, the main wall is rectangular, and the clamping plate portion includes two and is oppositely arranged, and the supporting walls include four
It is a and be divided into the main wall along the both sides of its long axis direction.
Preferably, the supporting walls include the fixed column extended from the main wall and from the fixed column to far from described
The support portion that the direction of main wall extends；The clamping plate portion is equipped with the mounting hole with fixed column cooperation through thereon, institute
It states mounting hole and is arranged and be fixed on the fixed column and the clamping plate portion is made to be located between the reinforcement ring portion and the support portion.
Preferably, the main wall is equipped with the extension extended in the receiving space close to the one end in the clamping plate portion
Portion, the extension are connected to side of the clamping plate portion far from the secondary magnet steel.
Preferably, the side far from the receiving space of the support portion and the main wall is coplanar.
Preferably, the clamping plate portion and side of the main wall far from the receiving space are coplanar.
Preferably, mounting hole described in the reinforcement ring portion covering part.
Preferably, the frame is integrated with the clamping plate injection molding.
Compared with prior art, microphone device provided by the invention is embedded the fixed clamping plate in the frame, described
Clamping plate includes reinforcing ring portion and clamping plate portion, and the reinforcement ring portion of the clamping plate is embedded to the main body of the frame completely
Wall makes the structural strength bigger of the frame, and reliability is more excellent, in addition, the reinforcement ring portion can be according to the structure setting of frame
In its weaker region, its reliability is promoted；The clamping plate portion of the clamping plate is made using high magnetic conductive material, pressure is set to
The pair magnet steel serves as a part of structure of the magnetic circuit system, is used to keep off magnetic for the magnetic circuit system, reduces magnetic field leakage, from
And strengthen the acoustical behavior of the microphone device.
Description of the drawings
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 sectional view of the line A-A along Fig. 1；
Fig. 4 is the dimensional structure diagram of the frame and clamping plate of microphone device of the present invention；
Fig. 5 is the cross-sectional view of the frame and clamping plate of microphone device of the present invention.
Specific implementation mode
Below in conjunction with drawings and embodiments, the invention will be further described.
Please join simultaneously shown in Fig. 1-3, the present invention provides a kind of microphone device 100, including frame 1, vibrational system 2, magnetic circuit
System 3, protecgulum 4 and clamping plate 5.
The frame 1 has a receiving space 10, including main wall 11 annular in shape, extended by the main wall 11 it is multiple
The supporting walls 12 of spaced setting and the receiving space is extended to close to one end of the clamping plate 5 by the main wall 11
Extension 13 in 10.
Specifically, the supporting walls 12 include the fixed column 121 extended by the main wall 11 and by the fixed column 121
The support portion 122 extended to the direction far from the main wall 11.In present embodiment, the support portion 122 and the main body
The side far from the receiving space 10 of wall 11 is coplanar.In present embodiment, by taking the main wall 11 is in rectangular configuration as an example
It illustrates.
The vibrational system 2 and the magnetic circuit system 3 are fixedly supported to the frame 1, the vibrational system 2 and institute respectively
It states magnetic circuit system 3 and generates electromagnetic field jointly for driving 2 vibration sounding of the vibrational system.
The vibrational system 2 includes the vibrating diaphragm 21 for being fixed on the frame 1 and the sound for driving 21 vibration sounding of vibrating diaphragm
Circle 22.In present embodiment, the vibrating diaphragm 21 is fixed on the main wall 11 of the frame 1.
The magnetic circuit system 3 includes being fixed on the yoke 31 of the frame 1 and being fixed on the main magnet steel 32 of the yoke 31
And pair magnet steel 33.The pair magnet steel 33, which is set to the side of the main magnet steel 32 and is spaced with the main magnet steel 32, to be arranged, and is formed
Magnetic gap (not labeled), the voice coil 22, which plugs, to be suspended in the magnetic gap.In present embodiment, the yoke 31 is fixed on
The supporting walls 12 of the frame 1.More preferably, the yoke 31 is fixed on the support portion 122 of the supporting walls 12.
The lid of the protecgulum 4, which is set, to be fixed on the frame 1 and is attached at the vibrating diaphragm 21, and sounding channel is used to form.
The clamping plate 5 is annular in shape, is embedded and is fixed on the frame 1.In present embodiment, the frame 1 and the folder
5 injection molding of plate is integrated.
Specifically, the clamping plate 5 includes the reinforcement ring portion 51 annular in shape being embedded at completely in the frame 1 and by described
Reinforce the clamping plate portion 52 that ring portion 51 extends to the interior direction of the frame 1.The extension 13 is close by the main wall 11
The one end in the clamping plate portion 52 extends to form.The extension 13 is connected to one of the clamping plate portion 52 far from the secondary magnet steel 33
Side.In present embodiment, the clamping plate portion 52 and side of the main wall 11 far from the receiving space 10 are coplanar.
Specifically, the reinforcement ring portion 51 is embedded at the main wall 11, the reinforcement ring portion 51 is at least partially stainless
Steel.For the carbon steel structure of the relevant technologies, in microphone device 100 of the invention, 51 reasons of the reinforcement ring portion are stainless
Steel material is made, and is easy to be molded, and size can accomplish more extreme demand, and can be embedded in the basin for being embedded in the plastic material
In frame 1, to effectively improve the structural strength of the frame 1, that is, increase its reliability.
The supporting walls 12 are fixed in the clamping plate portion 52, and the magnetic permeability in the clamping plate portion 52 is more than the reinforcement ring portion
Magnetic permeability.The clamping plate portion 52 is attached at the side far from the yoke 31 of the secondary magnet steel 33.It is described in present embodiment
Clamping plate portion 52 is made of high magnetic conductive material, for example is siderochrome cobalt magnetically soft alloy Hiperco 27, is certainly not limited to this.The structure makes
The part that the magnetic circuit system 3 is served as in the clamping plate portion 52 is obtained, gear magnetic action is formed to the magnetic circuit system 3, reduces leakage field
Phenomenon, to improve the acoustical behavior of the microphone device 100.
In present embodiment, the supporting walls 12 include four and be divided into the main wall 11 along its long axis direction
Both sides.The clamping plate portion 52 includes two and is oppositely arranged, i.e., two clamping plate portions 52 are located at the main wall 11
Along the both sides of its long axis direction and be fixed on the supporting walls 12.
Specifically, the clamping plate portion 52 is equipped with the mounting hole 521 coordinated with the fixed column 121 through thereon.It is described
Mounting hole 521, which is arranged, to be fixed on the fixed column 121 and the clamping plate portion 52 is made to be located in the reinforcement ring portion 51 and the branch
Between support part 122.The magnetic circuit system 3 is then fixed on the support portion 122 of the supporting walls 12.The reinforcement ring portion 51 is covered
Mounting hole 521 described in cover.As shown in figure 5, clamping plate 5 is integrated with 1 injection molding of frame.
Compared with prior art, microphone device provided by the invention is embedded the fixed clamping plate in the frame, described
Clamping plate includes reinforcing ring portion and clamping plate portion, and the reinforcement ring portion of the clamping plate is embedded to the main body of the frame completely
Wall makes the structural strength bigger of the frame, and reliability is more excellent, in addition, the reinforcement ring portion can be according to the structure setting of frame
In its weaker region, its reliability is promoted；The clamping plate portion of the clamping plate is made using high magnetic conductive material, pressure is set to
The pair magnet steel serves as a part of structure of the magnetic circuit system, is used to keep off magnetic for the magnetic circuit system, reduces magnetic field leakage, from
And strengthen the acoustical behavior of the microphone device.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every 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 (10)
1. a kind of microphone device, includes frame with receiving space and be fixed on the magnetic circuit system of the receiving space, it is described
Magnetic circuit system includes being fixed on the yoke of the frame and being fixed on the main magnet steel of the yoke and secondary magnet steel, and the pair magnet steel is set
It is placed in the side of the main magnet steel and is arranged with the main magnet steel interval, which is characterized in that the microphone device further includes being embedded
Be fixed on the clamping plate in a ring of the frame, the clamping plate include the reinforcement ring portion annular in shape being embedded in the frame and
The clamping plate portion extended from the reinforcement ring portion to the interior direction of the frame, the clamping plate portion are attached at the remote of the secondary magnet steel
The magnetic permeability of side from the yoke, the clamping plate portion is more than the magnetic permeability for reinforcing ring portion, and the reinforcement ring portion is at least
Part is stainless steel.
2. microphone device according to claim 1, which is characterized in that the clamping plate portion is siderochrome cobalt magnetically soft alloy.
3. microphone device according to claim 1, which is characterized in that the frame includes main wall annular in shape and by institute
The supporting walls of multiple spaced settings of main wall extension are stated, the reinforcement ring portion is embedded at the main wall, the clamping plate
The supporting walls are fixed in portion.
4. microphone device according to claim 3, which is characterized in that the main wall is rectangular, and the clamping plate portion includes
Two and be oppositely arranged, the supporting walls include four and be divided into the main wall along the both sides of its long axis direction.
5. microphone device according to claim 3, which is characterized in that the supporting walls include being extended by the main wall
Fixed column and the support portion extended from the fixed column to the direction far from the main wall；The clamping plate portion is equipped with through thereon
With the fixed column cooperation mounting hole, the mounting hole, which is arranged, to be fixed on the fixed column and the clamping plate portion is made to be located in
Between the reinforcement ring portion and the support portion.
6. microphone device according to claim 5, which is characterized in that the main wall is set close to the one end in the clamping plate portion
There are the extension extended in the receiving space, the extension to be connected to one of the clamping plate portion far from the secondary magnet steel
Side.
7. microphone device according to claim 5, which is characterized in that the support portion is with the main wall far from described
The side of receiving space is coplanar.
8. microphone device according to claim 7, which is characterized in that the clamping plate portion is with the main wall far from the receipts
The side for holding space is coplanar.
9. microphone device according to claim 5, which is characterized in that mounting hole described in the reinforcement ring portion covering part.
10. microphone device according to claim 9, which is characterized in that the frame is one with the clamping plate injection molding
Body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810108602.7A CN108322870B (en) | 2018-02-02 | 2018-02-02 | Sound production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810108602.7A CN108322870B (en) | 2018-02-02 | 2018-02-02 | Sound production device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108322870A true CN108322870A (en) | 2018-07-24 |
| CN108322870B CN108322870B (en) | 2021-01-29 |
Family
ID=62903222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810108602.7A Expired - Fee Related CN108322870B (en) | 2018-02-02 | 2018-02-02 | Sound production device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108322870B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110062316A (en) * | 2019-06-20 | 2019-07-26 | 瑞声光电科技(常州)有限公司 | Microphone device |
| WO2020034709A1 (en) * | 2018-08-14 | 2020-02-20 | 瑞声声学科技(深圳)有限公司 | Sound producing device |
| WO2020134347A1 (en) * | 2018-12-29 | 2020-07-02 | 瑞声声学科技(深圳)有限公司 | Sound production device |
| WO2020134344A1 (en) * | 2018-12-29 | 2020-07-02 | 瑞声声学科技(深圳)有限公司 | Sound producing device |
| WO2020140589A1 (en) * | 2018-12-31 | 2020-07-09 | 瑞声声学科技(深圳)有限公司 | Micro sounding device |
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| US20090304223A1 (en) * | 2008-06-10 | 2009-12-10 | Jui-Cheng Chang | Speaker, Yoke thereof and Method for Manufacturing Yoke |
| CN201699958U (en) * | 2010-07-22 | 2011-01-05 | 浙江东阳东磁有限公司 | Loudspeaker magnetic circuit heat dissipation structure |
| US20110123061A1 (en) * | 2008-05-13 | 2011-05-26 | Hosiden Corporation | Electroacoustic transducing device |
| CN201893921U (en) * | 2010-11-10 | 2011-07-06 | 瑞声光电科技(常州)有限公司 | Electromagnetic loudspeaker |
| CN203747987U (en) * | 2013-12-13 | 2014-07-30 | 瑞声光电科技(常州)有限公司 | Sounder |
| US20160249137A1 (en) * | 2014-09-10 | 2016-08-25 | Panasonic Intellectual Property Management Co., Ltd. | Loudspeaker and mobile device incorporating same |
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2018
- 2018-02-02 CN CN201810108602.7A patent/CN108322870B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20110123061A1 (en) * | 2008-05-13 | 2011-05-26 | Hosiden Corporation | Electroacoustic transducing device |
| US20090304223A1 (en) * | 2008-06-10 | 2009-12-10 | Jui-Cheng Chang | Speaker, Yoke thereof and Method for Manufacturing Yoke |
| CN201699958U (en) * | 2010-07-22 | 2011-01-05 | 浙江东阳东磁有限公司 | Loudspeaker magnetic circuit heat dissipation structure |
| CN201893921U (en) * | 2010-11-10 | 2011-07-06 | 瑞声光电科技(常州)有限公司 | Electromagnetic loudspeaker |
| CN203747987U (en) * | 2013-12-13 | 2014-07-30 | 瑞声光电科技(常州)有限公司 | Sounder |
| US20160249137A1 (en) * | 2014-09-10 | 2016-08-25 | Panasonic Intellectual Property Management Co., Ltd. | Loudspeaker and mobile device incorporating same |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020034709A1 (en) * | 2018-08-14 | 2020-02-20 | 瑞声声学科技(深圳)有限公司 | Sound producing device |
| US20200059726A1 (en) * | 2018-08-14 | 2020-02-20 | AAC Technologies Pte. Ltd. | Sounding device |
| US10932049B2 (en) * | 2018-08-14 | 2021-02-23 | AAC Technologies Pte. Ltd. | Sounding device |
| WO2020134347A1 (en) * | 2018-12-29 | 2020-07-02 | 瑞声声学科技(深圳)有限公司 | Sound production device |
| WO2020134344A1 (en) * | 2018-12-29 | 2020-07-02 | 瑞声声学科技(深圳)有限公司 | Sound producing device |
| US10932059B2 (en) | 2018-12-29 | 2021-02-23 | AAC Technologies Pte. Ltd. | Speaker |
| US11109160B2 (en) | 2018-12-29 | 2021-08-31 | AAC Technologies Pte. Ltd. | Speaker |
| WO2020140589A1 (en) * | 2018-12-31 | 2020-07-09 | 瑞声声学科技(深圳)有限公司 | Micro sounding device |
| CN110062316A (en) * | 2019-06-20 | 2019-07-26 | 瑞声光电科技(常州)有限公司 | Microphone device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108322870B (en) | 2021-01-29 |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210129 Termination date: 20220202 |