CN205847591U - Speaker - Google Patents
Speaker Download PDFInfo
- Publication number
- CN205847591U CN205847591U CN201620774165.9U CN201620774165U CN205847591U CN 205847591 U CN205847591 U CN 205847591U CN 201620774165 U CN201620774165 U CN 201620774165U CN 205847591 U CN205847591 U CN 205847591U
- Authority
- CN
- China
- Prior art keywords
- voice coil
- vibrating diaphragm
- magnet portion
- speaker
- pole piece
- 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.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- 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)
Abstract
This utility model provides a kind of speaker, the vibrational system that including main magnet portion, driven by main magnet portion and for housing the housing of main magnet portion and vibrational system, main magnet portion include folding successively set the first magnet steel, the first pole piece, the second magnet steel, the first magnet steel and the second magnetic steel magnetic pole homopolarity are oppositely arranged；Vibrational system includes the first voice coil loudspeaker voice coil, the second vibrating diaphragm being immobilizated in housing and the second voice coil loudspeaker voice coil of connection the second vibrating diaphragm that the first vibrating diaphragm being immobilizated in housing and the first vibrating diaphragm connect, and the first vibrating diaphragm and the second vibrating diaphragm relatively and are spaced setting；Main magnet portion is arranged between the first vibrating diaphragm and the second vibrating diaphragm and is immobilizated in housing, and the first voice coil loudspeaker voice coil is arranged around main magnet portion interval to drive the first diaphragm oscillations sounding, and the second voice coil loudspeaker voice coil is arranged around main magnet portion interval to drive the second diaphragm oscillations sounding.
Description
[technical field]
This utility model relates to electroacoustic transduction technical field, particularly relates to a kind of speaker.
[background technology]
Along with the fast development of science and technology, the popularity rate of audio frequency apparatus is more and more higher, and people are to the requirement of audio frequency apparatus not only
It is only limitted to the broadcasting of video/audio, more requires that the reliability to audio frequency apparatus proposes more requirements.The arrival in especially 3G epoch,
Technology of Mobile Multimedia develops the most therewith, and a lot of audio frequency apparatuses have multiple amusement function, such as video playback, digital vedio recording, trip
Play, GPS navigation etc., the electronic devices and components being desirable that in audio frequency apparatus are more and more accurate and compact.
In audio frequency apparatus, speaker is a kind of conventional electronic devices and components, is mainly used in the broadcasting of audio signal.But
Existing speaker, is typically all made up of monolithic magnet steel by the magnetic group of voice coil loudspeaker voice coil cincture, the magnetic flux that this magnetic group produces its week side
Measuring little, and can only drive a diaphragm oscillations sounding, magnetic flux is little causes again driving force not enough, thus affects described vibrating diaphragm
Vibration sensitivity.
Therefore, it is necessary to provide a kind of novel speaker to solve the problems referred to above.
[utility model content]
The purpose of this utility model is to provide a kind of speaker, and it realizes double-tone film sounding, the magnetic that each voice coil loudspeaker voice coil is corresponding
Flux is the biggest, thus has high vibration sensitivity.
The technical solution of the utility model is as follows: a kind of speaker, including main magnet portion, by the driving of described main magnet portion
Vibrational system and for housing described main magnet portion and the housing of described vibrational system, described main magnet portion includes folding successively setting
The first magnet steel, the first pole piece and the second magnet steel, described first magnet steel is oppositely arranged with described second magnetic steel magnetic pole homopolarity；Described
Vibrational system include the first voice coil loudspeaker voice coil that the first vibrating diaphragm being immobilizated in described housing is connected with described first vibrating diaphragm, be immobilizated in described
Second vibrating diaphragm of housing and connect the second voice coil loudspeaker voice coil of described second vibrating diaphragm, described first vibrating diaphragm is relative also with described second vibrating diaphragm
Interval is arranged；Described main magnet portion is arranged between described first vibrating diaphragm and described second vibrating diaphragm and is immobilizated in described housing, institute
State the first voice coil loudspeaker voice coil and around described main magnet portion and be spaced setting to drive described first diaphragm oscillations sounding, described second voice coil loudspeaker voice coil ring
Around described main magnet portion and be spaced setting to drive described second diaphragm oscillations sounding.
Above-mentioned speaker, described housing includes upper shell and the lower house assembled with described upper shell, described main magnet
Described upper shell is fixed in portion.
Above-mentioned speaker, described speaker also includes the secondary magnet portion being fixed on described lower house, described secondary magnet portion
Arranging around described main magnet portion interval to form magnetic gap, described first voice coil loudspeaker voice coil and described second voice coil loudspeaker voice coil are all suspended in described magnetic
In gap.
Above-mentioned speaker, described secondary magnet portion include folding successively set the 3rd pole piece, the 3rd magnet steel, the 4th pole piece and
4th magnet steel, described 3rd magnet steel is oppositely arranged with described 4th magnetic steel magnetic pole homopolarity, described 4th magnet steel be fixed on described under
Housing.
Above-mentioned speaker, described main magnet portion also includes the second pole piece being attached at described second magnet steel.Between described magnetic
Gap include the first magnetic gap being formed between described first pole piece and described 3rd pole piece and be formed at described second pole piece with
The second magnetic gap between described 4th pole piece, described first magnetic gap and the second magnetic gap be connected, and described first voice coil loudspeaker voice coil hangs
Floating in described first magnetic gap, described second voice coil suspension is in described second magnetic gap.
Above-mentioned speaker, described speaker also includes the pad being arranged between described upper shell and described 3rd pole piece
Circle, described packing ring is used for supporting described first vibrating diaphragm.
Above-mentioned speaker, described first vibrating diaphragm includes being positioned at the first pars intermedia in the middle of described first vibrating diaphragm with described
First pars intermedia connects and towards the first ring portion of described upper shell direction projection, towards described secondary magnet portion direction projection
Second ring portion, the top dome portion connecting described first ring portion and described second ring portion and sandwiched are fixed on described upper shell
And the first edge part between described packing ring.
Above-mentioned speaker, described upper shell is provided with described lower house and highlights the boss of formation, in the middle of described first
Portion's sandwiched is fixed between described boss and described main magnet portion.
Above-mentioned speaker, described lower house be provided with to away from described upper shell direction cave in formed for described
Second vibrating diaphragm provides the slot to make way of oscillation space.
Above-mentioned speaker, the inward flange of described 3rd magnet steel, described 4th pole piece and described 4th magnet steel is concordant, institute
State the inward flange of the 3rd pole piece inward flange than described 4th magnet steel closer to described first voice coil loudspeaker voice coil.
Compared with correlation technique, the speaker that this utility model provides is provided with two vibrating diaphragms and drives this two vibrating diaphragms respectively
Two voice coil loudspeaker voice coils of vibration sounding, main magnet portion is made up of folded the first magnet steel of setting, the first pole piece, the second magnet steel successively, these two
Voice coil loudspeaker voice coil is respectively arranged at all sides of main magnet portion, and so, the magnetic flux that each described voice coil loudspeaker voice coil is subject to is big, is effectively improved voice coil loudspeaker voice coil
Driving force, and then improve the vibration sensitivity of described vibrating diaphragm.
[accompanying drawing explanation]
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, required in embodiment being described below
Accompanying drawing to be used is briefly described, it should be apparent that, the accompanying drawing in describing below is only realities more of the present utility model
Execute example, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to these accompanying drawings
Obtain other accompanying drawing, wherein:
Fig. 1 is the three-dimensional exploded view of this utility model speaker；
Fig. 2 is the sectional view of this utility model speaker.
[detailed description of the invention]
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise
The all other embodiments obtained, broadly fall into the scope of this utility model protection.
Referring to the three-dimensional exploded view that Fig. 1 and Fig. 2, Fig. 1 are this utility model speaker, Fig. 2 is that this utility model is raised one's voice
The sectional view of device.Described speaker 100 include having receiving space housing 1, be contained in described housing 1 in and for producing magnetic
Main magnet portion 2 and secondary magnet portion 3 and in being contained in described housing 1 and with described the action of a magnetic field to produce shaking of vibration
Dynamic system 4.Described secondary magnet portion 3 is arranged around described main magnet portion 2 interval to form magnetic gap.
Described housing 1 includes upper shell 10 and assembles the lower house 11 forming described receiving space with described upper shell 10.
Upper shell 10 is substantially in cuboid housing, and the edge including flat roof 102 with along roof 102 bends and prolongs
The sidewall 103 stretched.The inner surface of roof 102 is prominent towards the direction of described lower house 11 is formed with boss 101.
Lower house 11 includes generally rectangular flat diapire 111 and a pair support platform being fixed on diapire
112.Support platform 112 a pair to be symmetrical arranged.The upper surface of diapire 111 is provided with the direction depression formation being directed away from upper shell 10
Stopper slot 110.In other embodiments, lower house 11 can also be not provided with supporting platform 112.
Described main magnet portion 2 includes folding the first magnet steel the 20, first pole piece the 21, second magnet steel 22 and the second pole set successively
Core 23, described first magnet steel 20 is oppositely arranged with described second magnet steel 22 homopolarity.Described first pole piece 21 and described second pole piece
23 are made by soft magnetic materials.The outward flange of described first magnet steel the 20, first pole piece 21 and described second magnet steel 22 three is put down
Together, the second pole piece 23 outward flange compares the outward flange of the second magnet steel 22 closer to the second voice coil loudspeaker voice coil 43.
Described secondary magnet portion 3 includes folding the 3rd pole piece the 30, the 3rd magnet steel the 31, the 4th pole piece 32 and the 4th magnetic set successively
Steel 33, described 3rd magnet steel 31 and described 4th magnet steel 33 homopolarity are oppositely arranged.Described 3rd pole piece 30 and described 4th pole piece
32 are made by soft magnetic materials.Described 3rd pole piece the 30, the 3rd magnet steel the 31, the 4th pole piece 32 and the 4th respective number of magnet steel 33
Amount is four.The inward flange of described 3rd magnet steel 31, described 4th pole piece 32 and described 4th magnet steel 33 three is concordant, institute
The inward flange of described 3rd pole piece 30 compares the inward flange of the 4th magnet steel 33 closer to the first voice coil loudspeaker voice coil 41.
The first magnetic gap is formed, shape between the second pole piece 23 and the 4th pole piece 32 between first pole piece 21 and the 3rd pole piece 30
Becoming the second magnetic gap, this first magnetic gap and the second magnetic gap are connected and constitute the magnetic gap of this magnetic circuit system.
Described vibrational system 4 includes being immobilizated in the first vibrating diaphragm 40 of upper shell 10, driving described first vibrating diaphragm 40 vibration to send out
First voice coil loudspeaker voice coil 41 of sound, it is immobilizated in the second vibrating diaphragm 42 of lower house 12 and drives the second of described second vibrating diaphragm 42 vibration sounding
Voice coil loudspeaker voice coil 43, described first vibrating diaphragm 40 and described second vibrating diaphragm 42 are relative and are spaced setting.
Described first vibrating diaphragm 40 includes being positioned at the first middle pars intermedia 400 of described first vibrating diaphragm 40, towards described upper casing
Protruding the first ring portion 401, the second ring portion 402 protruding towards described secondary magnet portion 3 direction in body 10 direction, connect described
The top dome portion 403 in the first ring portion 401 and described second ring portion 402 and be fixed on the first edge part of described upper shell 10
404。
Described second vibrating diaphragm 42 includes being positioned in the second pars intermedia 420 and described second in the middle of described second vibrating diaphragm 42
Between the 3rd ring portion 421 that connects of portion 420 and be fixed on the second edge part 422 of described lower house 11.
Speaker 100 also includes the packing ring 5 in hollow annular structure, packing ring 5 be fixed on secondary magnet portion 3 and upper shell 10 it
Between, for supporting the first vibrating diaphragm 40.Support platform 112 a pair also packing ring 5 to be played a supportive role.
During assembling, main magnet portion 2 is fixed on the boss 101 of upper shell 10, and the first pars intermedia 400 of the first vibrating diaphragm 40 presss from both sides
If being fixed between main magnet portion 2 and boss 101, the first edge part 404 sandwiched is fixed on sidewall 103 and the packing ring of upper shell 10
Between 5, top dome portion 402 is suspended in the oscillation space that boss 101 and packing ring 5 collectively form.Designed by this structure, described
First vibrating diaphragm 40 has bigger amplitude, has again more preferable vibration sensitivity simultaneously.Secondary magnet portion 3 is fixed on lower house 11
On diapire 111 and two support between platforms 112 to arrange around slot to make way 110, the second edge part 422 sandwiched of the second vibrating diaphragm 42
Being fixed between secondary magnet portion 3 and diapire 111, the second pars intermedia 420 and the 3rd ring portion 421 are suspended in allowing of lower house 11
In the groove 110 of position, step down oscillation space to described second vibrating diaphragm 42 by described slot to make way 110.One end of first voice coil loudspeaker voice coil 41 is fixed
In top dome portion 402, the other end is suspended in the first magnetic gap.One end of second voice coil loudspeaker voice coil 43 is fixed on the second pars intermedia 420,
The other end is suspended in the second magnetic gap.Owing to the magnetic line of force of described first magnet steel 20 and described second magnet steel 22 generation is by described
First pole piece 21 and described second pole piece 23 import in described magnetic gap, and described 3rd magnet steel 31 and described 4th magnet steel 33 produce
The magnetic line of force imported in described magnetic gap by described 3rd pole piece 30 and described 4th pole piece 32, therefore, in described magnetic gap
Magnetic flux intensity is big, and then the driving force that described first voice coil loudspeaker voice coil 41 and described second voice coil loudspeaker voice coil 43 are produced is bigger, is effectively improved
Described first vibrating diaphragm 40 and the vibration sensitivity of described second vibrating diaphragm 42.
Owing to described first vibrating diaphragm 40 and the described second equal sandwiched of vibrating diaphragm 42 are fixed, therefore can fix more firm, have
Effect increases the structural stability of described speaker 100.In other embodiments, it is also possible to be not provided with secondary magnet portion, the first voice coil loudspeaker voice coil
All arrange around main magnet portion with the second voice coil loudspeaker voice coil, respectively with main magnet portion interact with formed electromagnetic force drive the first vibrating diaphragm and
Second diaphragm oscillations sounding.
Compared with correlation technique, the speaker 100 that this utility model provides is provided with two vibrating diaphragms and drives these two respectively
Two voice coil loudspeaker voice coils of diaphragm oscillations sounding, main magnet portion 2 is by folded first magnet steel the 20, first pole piece the 21, second magnet steel 22 set successively
And second pole piece 23 form, these two voice coil loudspeaker voice coils are respectively arranged at described first pole piece 21 and all sides of described second pole piece 23,
So, the magnetic flux that each described voice coil loudspeaker voice coil is subject to is big, is effectively improved the driving force of voice coil loudspeaker voice coil, and then improves shaking of described vibrating diaphragm
Dynamic sensitivity.
Above-described is only embodiment of the present utility model, it should be noted here that for the ordinary skill of this area
For personnel, on the premise of creating design without departing from this utility model, it is also possible to make improvement, but these belong to this practicality
Novel protection domain.
Claims (10)
1. a speaker, including main magnet portion, by the vibrational system of described main magnet portion driving and for housing described master
Magnet portion and the housing of described vibrational system, it is characterised in that
Described main magnet portion includes folding the first magnet steel, the first pole piece and the second magnet steel set successively, and described first magnet steel is with described
Second magnetic steel magnetic pole homopolarity is oppositely arranged；
Described vibrational system includes the first voice coil loudspeaker voice coil that the first vibrating diaphragm being immobilizated in described housing is connected, solid with described first vibrating diaphragm
Being held in the second vibrating diaphragm of described housing and connect the second voice coil loudspeaker voice coil of described second vibrating diaphragm, described first vibrating diaphragm shakes with described second
Film relatively and is spaced setting；
Described main magnet portion is arranged between described first vibrating diaphragm and described second vibrating diaphragm and is immobilizated in described housing, and described first
Voice coil loudspeaker voice coil around described main magnet portion and be spaced setting to drive described first diaphragm oscillations sounding, described second voice coil loudspeaker voice coil is around described
Main magnet portion is also spaced setting to drive described second diaphragm oscillations sounding.
Speaker the most according to claim 1, it is characterised in that described housing include upper shell and with described upper shell group
The lower house joined, described main magnet portion is fixed on described upper shell.
Speaker the most according to claim 2, it is characterised in that described speaker also includes being fixed on described lower house
Secondary magnet portion, described secondary magnet portion is arranged around described main magnet portion interval to form magnetic gap, and described first voice coil loudspeaker voice coil is with described
Second voice coil loudspeaker voice coil is all suspended in described magnetic gap.
Speaker the most according to claim 3, it is characterised in that described secondary magnet portion includes folding the 3rd pole set successively
Core, the 3rd magnet steel, the 4th pole piece and the 4th magnet steel, described 3rd magnet steel is oppositely arranged with described 4th magnetic steel magnetic pole homopolarity,
Described 4th magnet steel is fixed on described lower house.
Speaker the most according to claim 4, it is characterised in that described main magnet portion also includes being sticked at described second magnetic
Second pole piece of steel, described magnetic gap include being formed at the first magnetic gap between described first pole piece and described 3rd pole piece and
It is formed at the second magnetic gap between described second pole piece and described 4th pole piece, described first magnetic gap and the second magnetic gap phase
Connection, described first voice coil suspension is in described first magnetic gap, and described second voice coil suspension is in described second magnetic gap.
Speaker the most according to claim 4, it is characterised in that described speaker also include being arranged at described upper shell with
Packing ring between described secondary magnet portion, described packing ring is used for supporting described first vibrating diaphragm.
Speaker the most according to claim 6, it is characterised in that described first vibrating diaphragm includes being positioned in described first vibrating diaphragm
Between the first pars intermedia connect with described first pars intermedia and the first ring portion protruding towards described upper shell direction, towards
Protruding the second ring portion, described secondary magnet portion direction, connect the top dome portion in described first ring portion and described second ring portion with
And the first edge part that sandwiched is fixed between described upper shell and described packing ring.
Speaker the most according to claim 7, it is characterised in that described upper shell is provided with described lower house and highlights shape
The boss become, described first pars intermedia sandwiched is fixed between described boss and described main magnet portion.
Speaker the most according to claim 8, it is characterised in that described lower house is provided with to the side away from described upper shell
The slot to make way for providing oscillation space for described second vibrating diaphragm formed to depression.
Speaker the most according to claim 4, it is characterised in that described 3rd magnet steel, described 4th pole piece and described
The inward flange of the 4th magnet steel is concordant, the inward flange of described 3rd pole piece than the inward flange of described 4th magnet steel closer to described first
Voice coil loudspeaker voice coil.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016207548647 | 2016-07-18 | ||
| CN201620754864 | 2016-07-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205847591U true CN205847591U (en) | 2016-12-28 |
Family
ID=57449423
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610581259.9A Active CN106101959B (en) | 2016-07-18 | 2016-07-21 | Loudspeaker |
| CN201620774165.9U Expired - Fee Related CN205847591U (en) | 2016-07-18 | 2016-07-21 | Speaker |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610581259.9A Active CN106101959B (en) | 2016-07-18 | 2016-07-21 | Loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN106101959B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106101959A (en) * | 2016-07-18 | 2016-11-09 | 瑞声科技(新加坡)有限公司 | Speaker |
| CN112533112A (en) * | 2020-12-25 | 2021-03-19 | 瑞声新能源发展(常州)有限公司科教城分公司 | Double-magnetic circuit structure and sound production device |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108513232A (en) * | 2017-02-24 | 2018-09-07 | 密斯工业(深圳)有限公司 | A kind of loud speaker |
| JP6909622B2 (en) * | 2017-04-26 | 2021-07-28 | 株式会社トーキン | Speaker and image display device |
| CN207802356U (en) * | 2017-12-25 | 2018-08-31 | 歌尔科技有限公司 | A kind of sound-producing device module |
| CN109511061B (en) * | 2018-12-27 | 2024-04-05 | 歌尔股份有限公司 | Miniature sound generating device and electronic product |
| CN111698618A (en) * | 2019-03-14 | 2020-09-22 | 歌尔股份有限公司 | Sound production device and electronic equipment |
| WO2020227956A1 (en) * | 2019-05-10 | 2020-11-19 | 瑞声声学科技(深圳)有限公司 | Magnetic circuit system and a loudspeaker using same |
| WO2021127926A1 (en) * | 2019-12-23 | 2021-07-01 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| CN211531284U (en) * | 2020-03-05 | 2020-09-18 | 瑞声科技(新加坡)有限公司 | Sound production device |
| CN111586543A (en) | 2020-05-21 | 2020-08-25 | 昆山联滔电子有限公司 | Balanced armature loudspeaker |
| CN111901735B (en) * | 2020-09-30 | 2020-12-18 | 歌尔股份有限公司 | Sound generator and electronic product comprising same |
| CN112468941A (en) * | 2020-11-30 | 2021-03-09 | 瑞声新能源发展(常州)有限公司科教城分公司 | Sound producing device |
| CN113055795B (en) * | 2021-02-02 | 2023-04-07 | 歌尔股份有限公司 | Sound production device and earphone |
| CN113194390A (en) * | 2021-04-23 | 2021-07-30 | 歌尔股份有限公司 | Sound producing device |
| CN114268889A (en) * | 2021-12-14 | 2022-04-01 | 歌尔科技有限公司 | Speaker and electronic apparatus |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002335597A (en) * | 2001-05-09 | 2002-11-22 | Citizen Electronics Co Ltd | Combination speaker |
| US6600399B1 (en) * | 2002-02-05 | 2003-07-29 | Roland Pierre Trandafir | Transducer motor/generator assembly |
| CN102300143A (en) * | 2010-06-28 | 2011-12-28 | 马春彪 | Thin type speaker |
| CN204069324U (en) * | 2014-07-18 | 2014-12-31 | 瑞声光电科技(常州)有限公司 | Acoustical generator |
| CN106101959B (en) * | 2016-07-18 | 2019-04-26 | 瑞声科技(新加坡)有限公司 | Loudspeaker |
-
2016
- 2016-07-21 CN CN201610581259.9A patent/CN106101959B/en active Active
- 2016-07-21 CN CN201620774165.9U patent/CN205847591U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106101959A (en) * | 2016-07-18 | 2016-11-09 | 瑞声科技(新加坡)有限公司 | Speaker |
| CN106101959B (en) * | 2016-07-18 | 2019-04-26 | 瑞声科技(新加坡)有限公司 | Loudspeaker |
| CN112533112A (en) * | 2020-12-25 | 2021-03-19 | 瑞声新能源发展(常州)有限公司科教城分公司 | Double-magnetic circuit structure and sound production device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106101959B (en) | 2019-04-26 |
| CN106101959A (en) | 2016-11-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161228 Termination date: 20210721 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |