CN109089197A - Loudspeaker monomer, loudspeaker assembly and electronic equipment - Google Patents
Loudspeaker monomer, loudspeaker assembly and electronic equipment Download PDFInfo
- Publication number
- CN109089197A CN109089197A CN201810852446.5A CN201810852446A CN109089197A CN 109089197 A CN109089197 A CN 109089197A CN 201810852446 A CN201810852446 A CN 201810852446A CN 109089197 A CN109089197 A CN 109089197A
- Authority
- CN
- China
- Prior art keywords
- vibrating diaphragm
- coil
- magnet
- gap
- loudspeaker
- 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.)
- Pending
Links
- 239000000178 monomer Substances 0.000 title claims abstract description 42
- 230000002093 peripheral effect Effects 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005855 radiation 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
- 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
- H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
- H04R2209/026—Transducers having separately controllable opposing diaphragms, e.g. for ring-tone and voice
-
- 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
The application provides a kind of loudspeaker monomer, including the first vibrating diaphragm, the second vibrating diaphragm, magnetic circuit component, first coil and the second coil, the magnetic circuit component is between first vibrating diaphragm and second vibrating diaphragm, the magnetic circuit component forms the first gap towards first vibrating diaphragm and towards the second gap of second vibrating diaphragm, the first coil is arranged in first gap and one end is fixed on first vibrating diaphragm, and second coil is arranged in second gap and one end is fixed on second vibrating diaphragm.The application also provides a kind of loudspeaker assembly and a kind of electronic equipment.The application uses the loudspeaker monomer of double diaphragm, can promote loudness.
Description
Technical field
This application involves the loudspeaker monomer of electronic equipment, in particular to a kind of loudspeaker monomer, loudspeaker assembly and electricity
Sub- equipment.
Background technique
Current loudspeaker monomer only has one layer of vibrating diaphragm, is limited to Microspeaker vibrating diaphragm material, when vibrating diaphragm displacement is more than
When a certain amount of, distortion is larger, can generate noise, therefore increase loudness on the basis of single vibrating membrane loudspeaker monomer to have certain office
It is sex-limited.
Summary of the invention
The application provides a kind of loudspeaker monomer, loudspeaker assembly and electronic equipment, can promote loudspeaker loudness.
The application provides a kind of loudspeaker monomer, including the first vibrating diaphragm, the second vibrating diaphragm, magnetic circuit component, first coil and
Two coil, between first vibrating diaphragm and second vibrating diaphragm, the magnetic circuit component is formed towards institute the magnetic circuit component
It states the first gap of the first vibrating diaphragm and towards the second gap of second vibrating diaphragm, the first coil is arranged between described first
In gap and one end is fixed on first vibrating diaphragm, and second coil is arranged in second gap and one end is fixed
On second vibrating diaphragm.
The application provides a kind of loudspeaker assembly, including a loudspeaker monomer and a power amplifier, the loudspeaker monomer, including
First vibrating diaphragm, the second vibrating diaphragm, magnetic circuit component, first coil and the second coil, the magnetic circuit component be located at first vibrating diaphragm and
Between second vibrating diaphragm, the magnetic circuit component forms the first gap towards first vibrating diaphragm and towards second vibrating diaphragm
The second gap, the first coil is arranged in first gap and one end is fixed on first vibrating diaphragm, described
Second coil is arranged in second gap and one end is fixed on second vibrating diaphragm, the first coil and described the
Two coil is connect with the power amplifier.
The application also provides a kind of electronic equipment, including loudspeaker assembly.The loudspeaker assembly includes a loudspeaker list
Body and a power amplifier, the loudspeaker monomer, including the first vibrating diaphragm, the second vibrating diaphragm, magnetic circuit component, first coil and the second coil,
Between first vibrating diaphragm and second vibrating diaphragm, the magnetic circuit component is formed towards first vibration magnetic circuit component
First gap of film and towards the second gap of second vibrating diaphragm, the first coil be arranged in first gap and
One end is fixed on first vibrating diaphragm, and second coil is arranged in second gap and one end is fixed on described the
On two vibrating diaphragms, the first coil and second coil are connect with the power amplifier.
Loudspeaker monomer, loudspeaker assembly and the electronic equipment of the application, the electronic equipment include loudspeaker assembly, institute
Stating loudspeaker assembly includes a loudspeaker monomer and a power amplifier, and the loudspeaker monomer includes the first vibrating diaphragm, the second vibrating diaphragm, first
Coil and the second coil, the first coil and second coil are separately fixed at first vibrating diaphragm and second vibrating diaphragm
On, the first coil and second coil are connect with the power amplifier, and the power amplifier pushes first vibrating diaphragm and described
Second vibrating diaphragm vibrates simultaneously, can promote loudness.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the application, general for this field
For logical technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the module diagram of the electronic equipment in one embodiment of the application.
Fig. 2 is the structural schematic diagram of the loudspeaker monomer in one embodiment of the application.
Fig. 3 is the connection schematic diagram of the loudspeaker monomer and a power amplifier in one embodiment of the application.
Fig. 4 is the connection schematic diagram of the loudspeaker monomer and a power amplifier in another embodiment of the application.
Specific embodiment
In order to make the personnel in art technology field more fully understand application scheme, below in conjunction with the embodiment of the present application
In attached drawing, technical solutions in the embodiments of the present application is explicitly described, it is clear that described embodiment is only this
Apply for the embodiment of a part, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present application.
The description and claims of this application and term " first " in above-mentioned attached drawing, " second " and " third " etc. are
For distinguishing different objects, not for description particular order.Term " includes " and their any deformations, it is intended that covering
Non-exclusive includes.Such as it contains the process, method, system, product or equipment of a series of steps or units and is not limited to
Listed step or unit, but optionally further comprising the step of not listing or unit, or optionally further comprising for this
A little process, methods, the other step or units of product or equipment inherently.
Referring to Fig. 1, Fig. 1 is the module diagram of the electronic equipment in one embodiment of the application.The electronic equipment 100
It can be but not limited to mobile phone, tablet computer, electronic reader, wearable electronic equipment etc..The electronic equipment 100 includes raising
Sound device assembly 10.It will be apparent to a skilled person that described Fig. 1 is only the example of the electronic equipment 100, not structure
The restriction of the pairs of electronic equipment 100, the electronic equipment 100 may include than more or fewer components shown in Fig. 1, or
Person combines certain components or different components, such as the electronic equipment 100 can also include input-output equipment, network
Access device, data/address bus etc..
The loudspeaker assembly 10 includes a loudspeaker monomer 1.It is in one embodiment of the application please also refer to Fig. 2, Fig. 2
Loudspeaker monomer structural schematic diagram.The loudspeaker monomer 1 include the first vibrating diaphragm 11, the second vibrating diaphragm 12, magnetic circuit component 13,
First coil 14 and the second coil 15.The magnetic circuit component 13 is between first vibrating diaphragm 11 and second vibrating diaphragm 12.
The magnetic circuit component 13 is formed between the first gap 131 towards first vibrating diaphragm 11 and second towards second vibrating diaphragm 12
Gap 133.The first coil 14 is arranged in first gap 131 and one end is fixed on first vibrating diaphragm 11, institute
The setting of the second coil 15 is stated in second gap and one end is fixed on second vibrating diaphragm 12.
In the application, loudspeaker monomer 1 includes the first vibrating diaphragm 11 and the second vibrating diaphragm 12, the first coil 11 and described the
Two coil 12 can vibrate simultaneously, it is thus possible to promote loudness.Relatively single vibrating membrane loudspeaker monomer, the double diaphragm loudspeaking of the application
Device monomer 1 has bigger space in terms of increasing loudness.
Specifically, the first coil 14 can be fixed on first vibrating diaphragm 11 by gluing or other suitable mode
On, second coil 15 can be fixed on second vibrating diaphragm 12 by gluing or other suitable mode.
Specifically, the magnetic circuit component 13 includes magnetic conductive disk 135, the first magnet 137 and at least one second magnet 139.Institute
Magnetic conductive disk 135 is stated between first vibrating diaphragm 11 and second vibrating diaphragm 12.The magnetic conductive disk 135 is in U-shape including section
Annulus 1351 and annular flange portion 1353 made of being extended vertically outward from the open end of the annulus 1351.It is described
The inside of annulus 1351 forms the first receiving portion 1355.First receiving portion 1355 is towards first vibrating diaphragm 11.It is described
The second receiving portion 1357 is formed between flange part 1353 and the outer wall of the annulus 1351.Second receiving portion, 1357 direction
Second vibrating diaphragm 12.First magnet 137 is housed in first receiving portion 1355 and forms cricoid first gap
131.At least one second magnet 139, which is housed in second receiving portion 1357, forms cricoid second gap 133.
Specifically, first magnet 137 is arranged on the bottom wall in first receiving portion 1355.First magnet
The first magnetic field (not shown) is formed between 137 and the inner wall of the annulus 1351.When the first coil 14 is arranged described
When in the first gap 131, the first coil 14 is in first magnetic field.It is electric when leading to alternation in the first coil 14
After stream, the first coil 14 is acted in first magnetic field by the Ampere force in first magnetic field along up and down direction
Vibration, and then first vibrating diaphragm 11 is driven to vibrate.
Specifically, the flange part 1353 is arranged in close to second vibrating diaphragm 12 at least one second magnet 139
On side.Is formed between at least one second magnet 139 and the outer wall and the flange part 1353 of the annulus 1351
Two magnetic fields.When second coil 15 is arranged in second gap 133, second coil 15 is at described second
Magnetic field.After leading to alternating current in second coil 15, work of second coil 15 by the Ampere force in second magnetic field
It is vibrated in second magnetic field along up and down direction, and then second vibrating diaphragm 12 is driven to vibrate.
First vibrating diaphragm 11 and second vibrating diaphragm 12 can thus vibrate simultaneously, so as to increase loudness.
Further specifically, in one embodiment, at least one second magnet 139 includes second magnet
139, and second magnet 139 is annular in shape.Second magnet 139 surrounds the outer wall of the annulus 1351 to be formed
State the second gap 133.
Further, in another embodiment, at least one second magnet 139 includes at least two second magnet 139.
At least two second magnet 139 arcuation in a ring.At least two second magnet 139 is intermittently around the annulus
1351 outer wall is to form second gap 133.Also, at least two second magnet 139 is with the annulus
On same circumference centered on 1351 center.
Further specifically, in one embodiment, at least two second magnet 139 is with the annulus 1351
It is symmetrical arranged on same circumference centered on center.
Further, the loudspeaker monomer 1 further includes bracket 16.The bracket 16 is annular in shape, 16 ring of bracket
It is arranged around the magnetic circuit component 13, the first coil 14 and second coil 15, also, first vibrating diaphragm 11 overlap joint is set
It sets on the top of the bracket 16, the overlap joint of the second vibrating diaphragm 12 is arranged on the bottom end of the bracket 16.
Further, the bracket 16 is provided with cricoid sound outlet hole 161 around its peripheral wall.161 face of sound outlet hole
On the position of second magnet, 139 approximate mid-section.The sound outlet hole 161 is for exporting first vibrating diaphragm 11 and described second
Vibrating diaphragm 12 vibrates generated sound.
Specifically, the upper surface of the flange part 1353 of the magnetic conductive disk 135 and the top of first magnet 137 are substantially flat
Together, the bottom of the annulus 1351 of the magnetic conductive disk 135 and the bottom of second magnet 139 are substantially concordant, the bracket 16
Top be higher than the magnetic conductive disk 135 flange part 1353 upper surface and first magnet 137 top, thus, it is described
Exist between the upper surface of the flange part 1353 of first vibrating diaphragm 11 and the magnetic conductive disk 135 and the top of first magnet 137
Gap, the gap form out sound path A.Bottom of the bottom end of the bracket 16 lower than the annulus 1351 of the magnetic conductive disk 135
With the bottom of second magnet 139, thus, the bottom of second vibrating diaphragm 12 and the annulus 1351 of the magnetic conductive disk 135
There are gap between the bottom of second magnet 139, which forms out sound path B.The outer wall of second magnet 139
There is also gap between the inner wall of the bracket 16, which forms out sound path C.Above three goes out sound path A, B and C phase
It is logical to be connected, setting finally is communicated with the sound outlet hole 161, thus, first vibrating diaphragm 11 and second vibrating diaphragm 12 vibration
The raw sound of movable property goes out sound by above-mentioned sound path A, B and C out and above-mentioned sound outlet hole 161.
Further, please also refer to the loudspeaker monomer and a power amplifier that Fig. 1 and Fig. 3, Fig. 3 are in one embodiment of the application
Connection schematic diagram.The loudspeaker assembly 10 further includes a power amplifier 2.The first coil 14 and second coil 15 with
The power amplifier 2 connects.The power amplifier 2 pushes the first coil 14 and second coil 15 while vibrating.
The power amplifier 2 of need one of Double-vibrating-diaspeaker speaker monomer 1 of the application is pushed to, so as to save a power amplifier
2.In the prior art, loudness is generally increased by stereo or twin loudspeaker scheme, i.e. raising using two power or loudness
Sound device and two power amplifiers are pushed to.In contrast, the Double-vibrating-diaspeaker speaker component 10 of the application goes to push away using a power amplifier 2
It is dynamic that there is smaller space requirement and lower production cost.
It specifically, is the connection of loudspeaker monomer and a power amplifier in one embodiment of the application please also refer to Fig. 3, Fig. 3
Schematic diagram.In one embodiment, the positive A2 of the positive A1 of the first coil 14 and second coil 15 connects, and described
After the cathode C2 of the cathode C1 of one coil 14 and second coil 15 connects, it is connect respectively with the positive and negative anodes of the power amplifier 2, with
Same-phase vibration is formed, so as to greatly increase loudness.
It specifically, is the company of loudspeaker monomer and a power amplifier in another embodiment of the application please also refer to Fig. 4, Fig. 4
Connect schematic diagram.In another embodiment, the cathode C2 of the positive A1 of the first coil 14 and second coil 15 connects, institute
After the positive A2 of the cathode C1 and second coil 15 that state first coil 14 connect, connect respectively with the positive and negative anodes of the power amplifier 2
It connects, to form antiphase vibration, from radiation directivity can be improved.
Loudspeaker monomer, loudspeaker assembly and the electronic equipment of the application, the loudspeaker assembly include loudspeaker monomer
And power amplifier, the loudspeaker monomer includes, the second vibrating diaphragm, first coil and the second coil, the first coil and described second
Coil is separately fixed on first vibrating diaphragm and second vibrating diaphragm, first vibrating diaphragm and the second vibrating diaphragm and power amplifier electricity
Property connection, the power amplifier pushes first vibrating diaphragm and second vibrating diaphragm to vibrate simultaneously, can promote loudspeaker loudness, comparison
Stereo or twin loudspeaker scheme saves space requirement and a power amplifier cost.
It is the embodiment of the embodiment of the present application above, it is noted that those skilled in the art are come
It says, under the premise of not departing from the embodiment of the present application principle, several improvements and modifications can also be made, these improvements and modifications
It is considered as the protection scope of the application.
Claims (11)
1. a kind of loudspeaker monomer, which is characterized in that the loudspeaker monomer include the first vibrating diaphragm, the second vibrating diaphragm, magnetic circuit component,
First coil and the second coil, the magnetic circuit component is between first vibrating diaphragm and second vibrating diaphragm, the magnetic circuit group
Towards the first gap of first vibrating diaphragm and towards the second gap of second vibrating diaphragm, the first coil is arranged for part formation
In first gap and one end is fixed on first vibrating diaphragm, and second coil is arranged in second gap
And one end is fixed on second vibrating diaphragm.
2. loudspeaker monomer according to claim 1, which is characterized in that the magnetic circuit component includes magnetic conductive disk, the first magnetic
Iron and at least one second magnet, the magnetic conductive disk is between first vibrating diaphragm and second vibrating diaphragm, the magnetic conductive disk packet
Flange part made of including annulus that section is in U-shape and being extended vertically outward from the open end of the annulus, the ring-type
The inside in portion forms the first receiving portion, and first receiving portion is towards first vibrating diaphragm, the flange part and the annulus
Outer wall between form the second receiving portion, second receiving portion is housed in institute towards second vibrating diaphragm, first magnet
It states the first receiving portion and forms first gap, at least one second magnet is housed in second receiving portion described in formation
Second gap.
3. loudspeaker monomer according to claim 2, which is characterized in that at least one second magnet includes described in one
Second magnet, second magnet is annular in shape, and around the outer wall of the annulus to form second gap.
4. loudspeaker monomer according to claim 2, which is characterized in that at least one second magnet includes described in two
Second magnet, two second magnet arcuation in a ring, two second magnet are intermittently around the outer of the annulus
Wall is to form second gap, also, two second magnet are in the same circle centered on the center of the annulus
On contour.
5. loudspeaker monomer according to claim 4, which is characterized in that two second magnet are with the annulus
Center centered on same circumference on be symmetrical arranged.
6. loudspeaker monomer according to claim 1, which is characterized in that the vibrating diaphragm further includes bracket, the support ring
It is arranged around the magnetic circuit component, the first coil and second coil, also, first vibrating diaphragm overlap joint is arranged described
On the top of bracket, the second vibrating diaphragm overlap joint is arranged on the bottom end of the bracket.
7. loudspeaker monomer according to claim 6, which is characterized in that the support ring is provided with cricoid around its peripheral wall
Sound outlet hole.
8. a kind of loudspeaker assembly, which is characterized in that the loudspeaker assembly includes as described in any one of claim 1 to 7
Loudspeaker monomer and a power amplifier, the first coil and second coil are connect with the power amplifier.
9. loudspeaker assembly according to claim 8, which is characterized in that the anode of the first coil and second line
The anode of circle connects, the positive and negative anodes after the cathode of the cathode of the first coil and second coil connects, with the power amplifier
Connection.
10. loudspeaker assembly according to claim 8, which is characterized in that the anode of the first coil and described second
The cathode of coil connects, positive and negative with the power amplifier after the anode of the cathode of the first coil and second coil connects
Pole connection.
11. a kind of electronic equipment, which is characterized in that the electronic equipment includes raising as claim 8 to 10 is described in any item
Sound device assembly.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810852446.5A CN109089197A (en) | 2018-07-27 | 2018-07-27 | Loudspeaker monomer, loudspeaker assembly and electronic equipment |
| PCT/CN2019/092071 WO2020019909A1 (en) | 2018-07-27 | 2019-06-20 | Loudspeaker unit, loudspeaker assembly and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810852446.5A CN109089197A (en) | 2018-07-27 | 2018-07-27 | Loudspeaker monomer, loudspeaker assembly and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109089197A true CN109089197A (en) | 2018-12-25 |
Family
ID=64833409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810852446.5A Pending CN109089197A (en) | 2018-07-27 | 2018-07-27 | Loudspeaker monomer, loudspeaker assembly and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109089197A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111193985A (en) * | 2020-03-13 | 2020-05-22 | Oppo广东移动通信有限公司 | Receiver assembly and mobile terminal |
| WO2020140544A1 (en) * | 2018-12-30 | 2020-07-09 | 瑞声声学科技(深圳)有限公司 | Sound generation device |
| WO2020228207A1 (en) * | 2019-05-14 | 2020-11-19 | 深圳市泰衡诺科技有限公司 | Double-diaphragm loudspeaker and terminal |
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| CN1384693A (en) * | 2001-05-08 | 2002-12-11 | 松下电器产业株式会社 | Loudspeaker and mobile terminal equipment |
| CN1554210A (en) * | 2001-09-11 | 2004-12-08 | 桑尼昂克尔克公司 | An electro-acoustic transducer with two diaphragms |
| CN103209377A (en) * | 2013-03-19 | 2013-07-17 | 歌尔声学股份有限公司 | Multi-functional loudspeaker |
| CN205283802U (en) * | 2015-12-29 | 2016-06-01 | 歌尔声学股份有限公司 | Speaker and electronic equipment |
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| CN206923033U (en) * | 2017-06-20 | 2018-01-23 | 瑞声科技(新加坡)有限公司 | Loudspeaker and electronic equipment |
| CN107959914A (en) * | 2017-12-12 | 2018-04-24 | 歌尔股份有限公司 | A kind of loudspeaker module |
| CN208489981U (en) * | 2018-07-27 | 2019-02-12 | Oppo广东移动通信有限公司 | Loudspeaker monomer, loudspeaker assembly and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1384693A (en) * | 2001-05-08 | 2002-12-11 | 松下电器产业株式会社 | Loudspeaker and mobile terminal equipment |
| CN1554210A (en) * | 2001-09-11 | 2004-12-08 | 桑尼昂克尔克公司 | An electro-acoustic transducer with two diaphragms |
| CN103209377A (en) * | 2013-03-19 | 2013-07-17 | 歌尔声学股份有限公司 | Multi-functional loudspeaker |
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| CN106303857A (en) * | 2016-09-07 | 2017-01-04 | 深圳天珑无线科技有限公司 | Double diaphragm loudspeaking component and loudspeaker arrangement |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020140544A1 (en) * | 2018-12-30 | 2020-07-09 | 瑞声声学科技(深圳)有限公司 | Sound generation device |
| WO2020228207A1 (en) * | 2019-05-14 | 2020-11-19 | 深圳市泰衡诺科技有限公司 | Double-diaphragm loudspeaker and terminal |
| CN111193985A (en) * | 2020-03-13 | 2020-05-22 | Oppo广东移动通信有限公司 | Receiver assembly and mobile terminal |
| CN111193985B (en) * | 2020-03-13 | 2021-06-01 | Oppo广东移动通信有限公司 | Mobile terminal |
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