CN103024646B - Conduct vibrations and frequency-selecting amplifying device for moving iron type microphone/transducer - Google Patents
Conduct vibrations and frequency-selecting amplifying device for moving iron type microphone/transducer Download PDFInfo
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- CN103024646B CN103024646B CN201110286504.0A CN201110286504A CN103024646B CN 103024646 B CN103024646 B CN 103024646B CN 201110286504 A CN201110286504 A CN 201110286504A CN 103024646 B CN103024646 B CN 103024646B
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- Prior art keywords
- frequency
- selecting
- conduct vibrations
- amplifying device
- transducer
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 29
- 230000006870 function Effects 0.000 claims abstract description 15
- 230000008878 coupling Effects 0.000 claims abstract description 5
- 238000010168 coupling process Methods 0.000 claims abstract description 5
- 238000005859 coupling reaction Methods 0.000 claims abstract description 5
- 230000003321 amplification Effects 0.000 claims abstract description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims abstract description 3
- 230000006698 induction Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 13
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 2
- 230000009471 action Effects 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 230000005674 electromagnetic induction Effects 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 230000026683 transduction Effects 0.000 claims description 2
- 238000010361 transduction Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 208000036829 Device dislocation Diseases 0.000 claims 1
- 238000002604 ultrasonography Methods 0.000 claims 1
- 230000006872 improvement Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 230000008859 change Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 8
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 5
- 238000004026 adhesive bonding Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R11/00—Transducers of moving-armature or moving-core type
- H04R11/04—Microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R11/00—Transducers of moving-armature or moving-core type
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The invention discloses a kind of conduct vibrations in moving iron type microphone/transducer and frequency-selecting amplifying device, it coupling part including two ends and middle part conduct vibrations and frequency-selecting amplifier section, it is characterized in that: described conduct vibrations and frequency-selecting amplifying device mechanically connect microphone armature and vibrating diaphragm, and be transmitted on vibrating diaphragm after armature generation vibration being carried out frequency-selecting amplification by described middle part conduct vibrations and frequency-selecting amplifier section, it is achieved the frequency-selecting of mechanical energy to acoustic energy is amplified and conversion.Advantages of the present invention at least that: compare traditional conduct vibrations device, add frequency-selecting enlarging function, and can change flexibly on machine configurations and link position according to different demands, enrich product function, widened the scope of application；Comparing traditional design, manufacturability is strong, and cost is relatively low；Have employed attachment structure and the mode of improvement, greatly promote junction bond strength, enhance the anti-electricity of product, mechanical shock ability, thus extend the service life of product.
Description
Technical field
The present invention relates to conduction and the amplifying device of a kind of vibration, be applied to Miniature moving-iron particularly to one
Conduct vibrations in microphone/transducer apparatus and frequency-selecting amplifying device, belong to electroacoustics and micromachine neck
Territory.
Background technology
The commonly used strip-type of conduct vibrations device for moving iron type microphone/transducer in the market
With silk thread formula two ways, during use, strip-type use adhesive bonding mode by conduct vibrations device with
Armature is connected, and silk thread formula then uses arc discharge welding manner to be connected with the armature of microphone/transducer；And
Bond with being adhesive in the connected mode of vibrating diaphragm.But it is strong generally to there is connection in existing conduct vibrations device
Degree deficiency, anti-electricity, mechanical impetus ability, manufacturing process is complicated, and manpower and equipment cost are high, can be automatic
Change the deficiencies such as volume production ability；Further, the frame for movement of existing conduct vibrations device determines it
Only there is the function of conduct vibrations, it is impossible to the mechanical vibration producing armature carry out useful frequency-selecting and amplify, from
And limit the range of moving iron type microphone/transducer, weaken its competitive advantage.
Summary of the invention
It is an object of the invention to propose a kind of conduct vibrations for moving iron type microphone/transducer and frequency-selecting
Amplifying device, it can effectively improve the anti-electricity of microphone/transducer, mechanical shock performance, and the biggest
Improving the frequency response of microphone/transducer in degree, meanwhile, present invention has preferable manufacturability
And cost advantage, thus overcome deficiency of the prior art.
For achieving the above object, present invention employs following technical scheme:
A kind of conduct vibrations in moving iron type microphone/transducer and frequency-selecting amplifying device, it includes and institute
State the coupling part of armature in moving iron type microphone/transducer, middle part conduct vibrations and frequency-selecting amplifier section and with
Coupling part three part of vibrating diaphragm in described moving-iron microphone and transducer, it is characterised in that: described vibration
Conduction and frequency-selecting amplifying device by the mode welded and bond mechanically by described moving-iron microphone/transducing
Armature and the diaphragm portion of device couple together, and by described middle part conduct vibrations and frequency-selecting amplifier section to institute
State armature produce vibration carry out frequency-selecting amplification after be transmitted on described vibrating diaphragm, thus realize from mechanical energy to sound
The frequency-selecting of energy is amplified and conversion.
Further saying, described vibration and frequency-selecting conduction amplifying device also can amplify according to different frequency-selectings and implement
Purpose carries out different mechanical bend configurations in middle part conduct vibrations it described and frequency-selecting amplifier section, and middle part is curved
Bent configurations includes (but being not limited only to): I type, c-type and S type.
Described conduct vibrations and frequency-selecting amplifying device in material can by (but being not limited only to) copper, aluminum, ferrum,
Rustless steel, almag or titanium alloy are made.
Described conduct vibrations and frequency-selecting amplifying device in processing technology by die-cut, bending one-shot forming technique system
Become.
Connected mode between described conduct vibrations and frequency-selecting amplifying device and described armature be resistance, laser or
Ultrasonic bonding.
Connected mode between described conduct vibrations with frequency-selecting amplifying device with described vibrating diaphragm is that adhesive is bonding.
It addition, described conduct vibrations can select according to different functions or process requirements from frequency-selecting amplifying device
Be connected to described armature moves freely end, middle-end or drive end (end).
Compared with prior art, it is an advantage of the current invention that:
(1) defect existed for existing strip-type and silk thread formula conduct vibrations device, invention increases biography
Bonding area between conduct vibrations and frequency-selecting amplifying device and armature in sound device/transducer, it is ensured that product exists
In the case of sound quality is constant, promote conduct vibrations amplifying device and microphone/transducer armature greatly
Bonding strength, strengthens the anti-electricity of product, mechanical shock ability, thus extends the service life of product；
(2) enforcement purpose can be amplified in middle part conduct vibrations it described and frequency-selecting enlarging section according to different frequency-selectings
Dividing and carry out different mechanical bend configurations, middle bent configurations includes (but being not limited only to): I type, C
Type and S type, on the premise of keeping conduction device intrinsic vibration transfer function, add frequency-selecting enlarging function,
Greatly widen the range of application of product, the perfect frequency response of microphone/transducer products；
(3) use resistance, laser or ultrasonic bonding mode to described conduct vibrations and frequency-selecting amplifying device with
Described armature is combined, and greatly improves the manufacturability of related microphone/transducer products, reduces work
Skill difficulty；
(4) have employed facilitate die-cut, bending one-shot forming technique design, make described conduct vibrations and frequency-selecting
The manufacturing process of amplifying device is easier, and cost is lower；
(5) can according to the demand of function, technique select to be connected to described armature move freely end, middle-end or
Drive end (end), further simplify the manufacturing process of microphone/transducer, reduces manufacturing cost；
(6) additionally, heretofore described conduct vibrations and frequency-selecting amplifying device can according to function and process requirements
To select between various material, being limited little by material and technique, realizability is extremely strong.
Accompanying drawing explanation
Fig. 1 is existing strip-type conduct vibrations device and microphone/transducer armature attachment structure schematic diagram；
Fig. 2 is existing silk thread formula conduct vibrations device and microphone/transducer armature attachment structure schematic diagram；
Fig. 3 is that the present invention ties with frequency-selecting amplifying device section for the conduct vibrations of moving iron type microphone/transducer
Structure schematic diagram；
Fig. 4 be the present invention for conduct vibrations and the frequency-selecting amplifying device of moving iron type microphone/transducer select with
The cross-sectional view that armature diverse location connects；
Fig. 5 is the middle part of the present invention conduct vibrations for moving iron type microphone/transducer and frequency-selecting amplifying device
Conduction and the I type of frequency-selecting amplifier section, the cross-sectional view of the mechanical bend configuration of c-type and S type；
In figure, each reference and indicated assembly thereof are respectively as follows: 1-conduct vibrations and frequency-selecting amplifying device,
2-armature, 3-vibrating diaphragm, 4-conducting magnet core, 5-flat thin magnet, 6-magnetic induction coil, 7-magnetic shield shell, 8-magnetic
Induction coil holding wire, 9-outlet sound mouth.
Detailed description of the invention
Below in conjunction with accompanying drawing and a preferred embodiment, technical scheme is further described.
Refering to Fig. 3-5, the present embodiment relate to a kind of conduct vibrations being applied to moving iron type microphone/transducer and
Frequency-selecting amplifying device 1, wherein, this conduct vibrations is fixing with armature 2 with one end of frequency-selecting amplifying device 1 to be connected,
Its other end is fixing with vibrating diaphragm 3 to be connected, and armature 2 is additionally gone back and conducting magnet core 4, flat thin magnet 5 and magnetic induction
The fixed Combination that coil 6 and magnetic induction coil holding wire 8 collectively form is fixing to be connected, this combination further through
Conducting magnet core 4 is fixedly connected on magnetic shield shell 7, simultaneously the also vibrating diaphragm 3 that be connected fixing with magnetic shield shell 7,
Additionally, magnetic induction coil holding wire 8 passes at magnetic shield shell 7 signal wire slots, it is used for and external circuit
Connect to realize function.
Preferably, between this conduct vibrations and frequency-selecting amplifying device 1 and aforementioned armature 2 be resistance, laser or
Ultrasonic bonding mode is fixing to be connected.
Connect for adhesive bonding mode is fixing between this conduct vibrations and frequency-selecting amplifying device 1 and aforementioned vibrating diaphragm 3
Connect.
It is connected for resistance, laser or ultrasonic bonding mode are fixing between aforementioned conducting magnet core 4 and flat thin magnet 5.
It is connected for adhesive bonding mode is fixing between aforementioned magnetic induction coil 6 and conducting magnet core 4.
It is that resistance, laser or ultrasonic bonding mode are fixing even between aforementioned conducting magnet core 4 and magnetic shield shell 7
Connect.
Aforementioned armature 2 and conducting magnet core 4, flat thin magnet 5 and magnetic induction coil 6 and magnetic induction coil holding wire
Connect for resistance, laser or ultrasonic bonding mode are fixing between 8 fixed Combination collectively formed.
It is connected for adhesive bonding mode is fixing between aforementioned vibrating diaphragm 3 and magnetic shield shell 7.
Aforementioned magnetic induction coil holding wire 8 passes at magnetic shield shell 7 signal wire slots.
This conduct vibrations and frequency-selecting amplifying device 1 preferably use die-cut, mechanical bend configuration is one-time formed
Technique makes.
When using this conduct vibrations moving iron type microphone/transducer with frequency-selecting amplifying device 1 to work, exchange
The signal of telecommunication can be incoming by the magnetic induction coil holding wire 8 outside the signal wire slots being exposed to magnetic shield shell 7, thus
By magnetic induction coil 6, and thus producing electromagnetic induction effect and alternating magnetic field of inducting, alternating magnetic field can magnetize
Being placed in the armature 2 in magnetic induction coil 6, conducting magnet core 4 and flat thin magnet 5, armature 2 can be attracting according to homopolarity,
There is push-and-pull action in the principle that heteropole repels each other and flat thin magnet 5, thus drives and be fixedly connected on shaking on armature 2
Dynamic conduction produces vibration displacement with frequency-selecting amplifying device 1 along the direction orthogonal with armature 2, when vibration displacement passes
When being multicast to the middle part conduction of conduct vibrations and frequency-selecting amplifying device 1 with frequency-selecting amplifier section, in the middle part of it conduction with
According to the feature of its mechanical bend configuration vibration displacement can be carried out frequency-selecting amplification and continue during frequency-selecting amplifier section
Vibration displacement conduction after frequency-selecting being amplified is to the vibrating diaphragm that be connected fixing with frequency-selecting amplifying device 1 with conduct vibrations
3, vibrating diaphragm 3 is driven produces vibration, drives air vibration about to produce acoustical signal and by being placed in magnetic cup
The outlet sound mouth 9 covering shell 7 front end sends sound, complete by electric energy to magnetic energy again to mechanical energy finally to acoustic energy
Transduction efficiency.
Mechanical mechanism and the connected mode of conduct vibrations device have been done improvement design and have added brand-new by the present invention
Function, thus ensureing that product, in the case of sound quality is constant, promotes conduct vibrations greatly and amplifies dress
Put the bonding strength with microphone/transducer armature, specifically, increase in microphone/transducer and vibrate
Bonding area between conduction and frequency-selecting amplifying device and armature, thus strengthen the anti-electricity of product, mechanical shock
Ability, extends the service life of product；Meanwhile, the central structure of conduct vibrations device is also done by the present invention
Redesign, can amplify according to different frequency-selectings and implement purpose and put in middle part conduct vibrations and frequency-selecting it described
Major part carries out different mechanical bend configurations, and middle bent configurations includes (but being not limited only to): I type,
C-type and S type, on the premise of keeping conduction device intrinsic vibration transfer function, add frequency-selecting enlarging function,
Greatly widen the range of application of product, the perfect frequency response of microphone/transducer products；It addition,
Structure after improvement is convenient to use resistance, laser or ultrasonic bonding mode to amplify conduct vibrations and frequency-selecting
Device is combined with armature, greatly improves the manufacturability of related microphone/transducer products, reduces
Technology difficulty；Meanwhile, the structure after improvement is also convenient to use die-cut, bending one-shot forming technique system
Making, the manufacturing process making conduct vibrations and frequency-selecting amplifying device is easier, and cost is lower；Further,
The present invention also can move freely end, middle-end or driving according to what the demand of function, technique selected to be connected to armature
End (end), further simplify the manufacturing process of microphone/transducer, reduces manufacturing cost；Finally,
In the present invention, conduct vibrations and frequency-selecting amplifying device can select according to function and process requirements between various material
Selecting, limited little by material and technique, realizability is extremely strong.
Above the purpose of the present invention, technical scheme and beneficial effect are further described, answered
It is understood by, the foregoing is only presently preferred embodiments of the present invention, be not limited to the present invention, all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, all should comprise
Within protection scope of the present invention.
Claims (8)
1. for conduct vibrations and the frequency-selecting amplifying device of moving iron type microphone/transducer, it include with in described moving iron type microphone/transducer
The coupling part of armature, middle part conduct vibrations and frequency-selecting amplifier section and with three, the coupling part of vibrating diaphragm in described moving-iron microphone and transducer
Point, described conduct vibrations and frequency-selecting amplifying device by the mode welded and bond mechanically by the armature of described moving iron type microphone/transducer and
Diaphragm portion couples together, and the vibration produced described armature by described middle part conduct vibrations and frequency-selecting amplifier section carries out biography after frequency-selecting amplification
Lead on described vibrating diaphragm, thus realize the frequency-selecting from mechanical energy to acoustic energy and amplify and conversion, it is characterised in that: described conduct vibrations and frequency-selecting are put
Big device can amplify enforcement purpose according to different frequency-selectings and carry out different mechanical bend configurations in middle part conduct vibrations it described and frequency-selecting amplifier section,
Middle bent configurations includes c-type and S type.
Conduct vibrations for moving iron type microphone/transducer the most according to claim 1 and frequency-selecting amplifying device, it is characterised in that: institute
State conduct vibrations and frequency-selecting amplifying device to be made up of copper, aluminum, ferrum, rustless steel, almag or titanium alloy in material.
Conduct vibrations for moving iron type microphone/transducer the most according to claim 2 and frequency-selecting amplifying device, it is characterised in that: institute
State conduct vibrations to be made up of die-cut, bending one-shot forming technique in processing technology with frequency-selecting amplifying device.
Conduct vibrations for moving iron type microphone/transducer the most according to claim 1 and frequency-selecting amplifying device, it is characterised in that: institute
Stating the connected mode between the armature of conduct vibrations and frequency-selecting amplifying device and described moving iron type microphone/transducer is resistance, laser or ultrasound wave
Welding.
Conduct vibrations for moving iron type microphone/transducer the most according to claim 1 and frequency-selecting amplifying device, it is characterised in that: institute
Stating the connected mode between conduct vibrations with frequency-selecting amplifying device with the vibrating diaphragm of described moving iron type microphone/transducer is that adhesive is bonding.
6. amplify dress according to the conduct vibrations for moving iron type microphone/transducer described in claim 1 or 2 or 3 or 4 or 5 with frequency-selecting
Put, it is characterised in that: described microphone/transducer is by conduct vibrations and frequency-selecting amplifying device, armature, vibrating diaphragm, conducting magnet core, Magnet
Sheet, magnetic induction coil, a few part of magnetic shield shell forms.
Conduct vibrations for moving iron type microphone/transducer the most according to claim 6 and frequency-selecting amplifying device, it is characterised in that: when
AC signal by described magnetic induction coil, and is thus produced electromagnetic induction effect and alternating magnetic field of inducting, institute by magnetic induction coil holding wire
State alternating magnetic field and can magnetize the described armature being placed in described magnetic induction coil, conducting magnet core and flat thin magnet, described armature can according to homopolar-repulsion,
The attracting principle of heteropole and described flat thin magnet generation push-and-pull action, thus drive the described conduct vibrations being welded on described armature to amplify dress with frequency-selecting
Put and produce vibration displacement along the direction orthogonal with described armature, when vibration displacement travels to the middle part conduction of described conduct vibrations and frequency-selecting amplifying device
During with frequency-selecting amplifier section, when the conduction of described middle part is with frequency-selecting amplifier section, according to the feature of its mechanical bend configuration, vibration displacement can be carried out frequency-selecting
Amplify and continue the vibration displacement conduction after frequency-selecting being amplified to the described vibrating diaphragm that is connected with frequency-selecting amplifying device with described conduct vibrations, described in shake
Film is driven produces vibration, drives air vibration about, thus sends sound, complete by electric energy to magnetic energy again to mechanical energy finally to acoustic energy
Transduction efficiency.
Conduct vibrations for moving iron type microphone/transducer the most according to claim 7 and frequency-selecting amplifying device, it is characterised in that: described
Conduct vibrations can select to be connected to moving freely end, middle-end or driving of described armature according to different functions or process requirements from frequency-selecting amplifying device
Moved end.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110286504.0A CN103024646B (en) | 2011-09-23 | 2011-09-23 | Conduct vibrations and frequency-selecting amplifying device for moving iron type microphone/transducer |
| PCT/CN2011/082119 WO2013040830A1 (en) | 2011-09-23 | 2011-11-12 | Vibration conduction and frequency-selective amplification device for moving iron microphone/transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110286504.0A CN103024646B (en) | 2011-09-23 | 2011-09-23 | Conduct vibrations and frequency-selecting amplifying device for moving iron type microphone/transducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103024646A CN103024646A (en) | 2013-04-03 |
| CN103024646B true CN103024646B (en) | 2016-08-31 |
Family
ID=47913797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110286504.0A Active CN103024646B (en) | 2011-09-23 | 2011-09-23 | Conduct vibrations and frequency-selecting amplifying device for moving iron type microphone/transducer |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103024646B (en) |
| WO (1) | WO2013040830A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103227974B (en) * | 2013-04-09 | 2016-01-20 | 苏州恒听电子有限公司 | A kind of receiver with Improvement type conduction mechanism |
| CN111384834A (en) * | 2018-12-29 | 2020-07-07 | 歌尔股份有限公司 | Carrier type exciter device |
| CN110090347A (en) * | 2019-06-06 | 2019-08-06 | 兰玉 | A kind of sound wave music earphone for developing brain potential |
| CN112203197B (en) * | 2019-07-08 | 2021-11-09 | 歌尔股份有限公司 | Magnetomotive transducer and electronic device thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1314771A (en) * | 2000-03-16 | 2001-09-26 | 星精密株式会社 | Electro-acoustic converter |
| JP2005236844A (en) * | 2004-02-23 | 2005-09-02 | Star Micronics Co Ltd | Electroacoustic transducer |
| EP1895811A2 (en) * | 2006-08-28 | 2008-03-05 | Sonion Nederland B.V. | Multiple receivers with a common acoustic spout |
| CN202334876U (en) * | 2011-09-23 | 2012-07-11 | 苏州恒听电子有限公司 | Vibration conduction and frequency selection amplifying device for moving iron type microphone/transducer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002300698A (en) * | 2001-04-02 | 2002-10-11 | Star Micronics Co Ltd | Receiver and portable communication apparatus |
-
2011
- 2011-09-23 CN CN201110286504.0A patent/CN103024646B/en active Active
- 2011-11-12 WO PCT/CN2011/082119 patent/WO2013040830A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1314771A (en) * | 2000-03-16 | 2001-09-26 | 星精密株式会社 | Electro-acoustic converter |
| JP2005236844A (en) * | 2004-02-23 | 2005-09-02 | Star Micronics Co Ltd | Electroacoustic transducer |
| EP1895811A2 (en) * | 2006-08-28 | 2008-03-05 | Sonion Nederland B.V. | Multiple receivers with a common acoustic spout |
| CN202334876U (en) * | 2011-09-23 | 2012-07-11 | 苏州恒听电子有限公司 | Vibration conduction and frequency selection amplifying device for moving iron type microphone/transducer |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013040830A1 (en) | 2013-03-28 |
| CN103024646A (en) | 2013-04-03 |
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