CN109151680A - Electronic equipment - Google Patents
Electronic equipment Download PDFInfo
- Publication number
- CN109151680A CN109151680A CN201810852298.7A CN201810852298A CN109151680A CN 109151680 A CN109151680 A CN 109151680A CN 201810852298 A CN201810852298 A CN 201810852298A CN 109151680 A CN109151680 A CN 109151680A
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- CN
- China
- Prior art keywords
- vibrating diaphragm
- coil
- outlet hole
- sound outlet
- magnet
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Classifications
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/025—Magnetic circuit
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- 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
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- 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 electronic equipment, including shell and loudspeaker assembly, shell has the front sound outlet hole and back side sound outlet hole being oppositely arranged, loudspeaker assembly is arranged in shell, loudspeaker assembly includes a loudspeaker monomer and a power amplifier, loudspeaker monomer includes the first vibrating diaphragm, second vibrating diaphragm, magnetic circuit component, first coil and the second coil, magnetic circuit component is between the first vibrating diaphragm and the second vibrating diaphragm, magnetic circuit component forms the first gap towards the first vibrating diaphragm and the second gap towards the second vibrating diaphragm, first coil is arranged in the first gap and one end is fixed on the first vibrating diaphragm, second coil is arranged in the second gap and one end is fixed on the second vibrating diaphragm, first coil and the second coil are connect with power amplifier, power amplifier pushes sound caused by the first vibrating diaphragm and the vibration of the second vibrating diaphragm same-phase to pass through front sound outlet hole and the back side respectively Sound outlet hole output.The application is by the first vibrating diaphragm and the second vibrating diaphragm in phase vibration, and sonority greatly improves out.
Description
Technical field
This application involves a kind of electronic equipments with Double-vibrating-diaspeaker speaker monomer.
Background technique
Increasingly developed with electronic equipment, requirement of the user to the appearance of electronic equipment is higher and higher.For mobile phone
Speech, the maximized screen accounting that improves is one of important consideration factor for current product design.In order to improve screen accounting, industry
Start to be intended to go out sound mode using screen vocal skill or slit to realize the called function of making a phone call at present.In mobile phone sound
Matter promotes aspect, and mobile phone replaces handset function with mobile phone speaker, mobile phone upper end needs larger frequently with stereo scheme at present
Sound outlet hole realize that mobile phone speaker goes out sound.It needs to reduce or cancel as far as possible however, pursuing the promotion of cell phone appearance expressive force
The mobile phone of mobile phone upper end goes out sound area, but the experience of bring sound quality is very poor, can sacrifice the sound quality experience of user.
Summary of the invention
The application provides a kind of electronic equipment with Double-vibrating-diaspeaker speaker monomer, can solve above-mentioned technical problem.
The application provides a kind of electronic equipment, including shell and loudspeaker assembly, the shell have front sound outlet hole and
Back side sound outlet hole, the loudspeaker assembly are arranged in the shell, one loudspeaker monomer of loudspeaker assembly and a power amplifier,
The loudspeaker monomer includes the first vibrating diaphragm, the second vibrating diaphragm, magnetic circuit component, first coil and the second coil, the magnetic circuit component
Between first vibrating diaphragm and second vibrating diaphragm, the magnetic circuit component is formed towards the first gap of first vibrating diaphragm
With towards the second gap of second vibrating diaphragm, the first coil is arranged in first gap and one end is fixed on institute
It states on the first vibrating diaphragm, second coil is arranged in second gap and one end is fixed on second vibrating diaphragm, institute
It states first coil and second coil is connect with the power amplifier, the power amplifier pushes first vibrating diaphragm and second vibration
Film same-phase vibrates generated sound and passes through the front sound outlet hole and back side sound outlet hole output respectively.
In the application, the electronic equipment includes loudspeaker assembly and shell, and the loudspeaker assembly is arranged in the shell
In body, the loudspeaker assembly includes a loudspeaker monomer and a power amplifier, and the loudspeaker monomer includes the first vibrating diaphragm, the second vibration
Film, first coil and the second coil, the first coil and second coil respectively with first vibrating diaphragm and described second
Vibrating diaphragm is fixedly connected, and the power amplifier and the first coil and the second coil are electrically connected to push first vibrating diaphragm and described
The vibration of second vibrating diaphragm same-phase, also, generated sound passes through the front sound outlet hole respectively and the back side sound outlet hole is defeated
Out, loudness can be greatly promoted.
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 structural schematic 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 power amplifier in one 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 structural schematic 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 and shell 20.The loudspeaker assembly 10 is arranged in the shell 20.It should be understood by those skilled in the art that
, described Fig. 1 is only the example of the electronic equipment 100, does not constitute the restriction to the electronic equipment 100, the electricity
Sub- equipment 100 may include perhaps combining certain components or different components, example than more or fewer components shown in Fig. 1
Such as described electronic equipment 100 can also include input-output equipment, network access equipment, data/address bus.
The shell 20 has the front sound outlet hole 21 and back side sound outlet hole 22 being oppositely arranged.Specifically, the shell 20
Top 25 including front screen 23, back side battery cover 24 and the connection front screen 23 and the back side battery cover 24.
The front screen 23 is arranged at the position on the top 25 in the front sound outlet hole 21, and the back side sound outlet hole 22 is set
It sets in the back side battery cover 24 at the position on the top 25.
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.
It is the connection schematic diagram of the loudspeaker monomer and a power amplifier in one embodiment of the application please also refer to Fig. 3, Fig. 3.
The loudspeaker assembly 10 further includes a power amplifier 2.The first coil 14 and second coil 15 connect with the power amplifier 2
It connects.The power amplifier 2 pushes the first coil 14 and second coil 15 while vibrating generated sound passes through institute respectively
State front sound outlet hole 21 and the back side sound outlet hole 22 output.
In the application, the electronic equipment 100 includes loudspeaker assembly 10 and shell 20, and the loudspeaker assembly 10 is arranged
In the shell 20, the loudspeaker assembly 10 includes a loudspeaker monomer 1 and a power amplifier 2, and the loudspeaker monomer 1 includes
First vibrating diaphragm 11, the second vibrating diaphragm 12, first coil 14 and the second coil 15, the first coil 14 and second coil 15 divide
It is not fixed on first vibrating diaphragm 11 and second vibrating diaphragm 12, the first coil 14 and second coil 15 are and institute
The connection of power amplifier 2 is stated, the power amplifier 2 pushes first vibrating diaphragm 11 and 12 same-phase of the second vibrating diaphragm to vibrate generated sound
It is exported respectively by the front sound outlet hole 21 and the back side sound outlet hole 22, loudness can be greatly promoted.Relatively single vibrating diaphragm is raised
Sound device monomer, the Double-vibrating-diaspeaker speaker monomer 1 of the application have 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
Sound caused by vibrating diaphragm 12.
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, sound guide tube is formed between the inner wall on the top 25 of the outer wall and shell 20 of the bracket 16
G1, the sound guide tube G1 is connected to the front sound outlet hole 21 and the sound outlet hole 161, the sound guide tube G1 are also connected to the back side
Sound outlet hole 22 and the sound outlet hole 161, for exporting sound.
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.
Specifically, in one embodiment, the front sound outlet hole 21 and the back side sound outlet hole 22 are respectively slit band, institute
Stating slit band includes at least two spaced slits, has metal strip between adjacent two slits.Wherein, the gold
It is parallel with the extending direction of first gap band to belong to an extending direction.Wherein, the width of the gap band is 1.5mm, 5.0mm
Or 1.5mm~5.0mm.The width of the slit is 0.05mm, 0.3mm or 0.05mm~0.3mm.The width of the metal strip is
Value within the scope of 0.1mm, 0.5mm or 0.1mm to 0.5mm.
When the front sound outlet hole 21 and the back side sound outlet hole 22 are used for output low frequency sound, it is being parallel to the front panel
There is maximum on the direction on the surface of curtain 23, minimum occurs on the direction on the surface perpendicular to the front screen 23.
To, when realizing the receiver function of call using the loudspeaker assembly 10 and stretch out bass, the front sound outlet hole 21
It is equivalent to same-phase radiation sound source with the back side sound outlet hole 22, there is certain radiation directivity, be parallel to the front
There is maximum on the direction on the surface of screen 23, occurs on the direction on the surface perpendicular to the front screen 23 minimum
Value, thus, human ear can guarantee the privacy of call when receiving calls in certain degree.
Further, for the loudspeaker assembly 10 when playing music, the front sound outlet hole 21 and the back side go out sound
The sound that hole 22 is exported intercouples, and the sonority that goes out of the front sound outlet hole 21 and the back side sound outlet hole 22 always is single
Sound outlet hole goes out four times of sound, thus greatly improves out sonority.
The electronic equipment of the application, including loudspeaker assembly and shell, the loudspeaker assembly is disposed in the housing,
The loudspeaker assembly includes a loudspeaker monomer and a power amplifier, and the loudspeaker monomer includes the first vibrating diaphragm, the second vibrating diaphragm, the
One coil and the second coil, the first coil and second coil are solid with first vibrating diaphragm and second vibrating diaphragm respectively
Fixed connection, the power amplifier and the first coil and the second coil are electrically connected to push first vibrating diaphragm and second vibration
The vibration of film same-phase, also, generated sound passes through the front sound outlet hole and back side sound outlet hole output respectively, and it can be with
Greatly promote loudness.Stereo or twin loudspeaker scheme is compared, space requirement and a power amplifier cost are saved.
In addition, the front sound outlet hole 21 and the back side sound outlet hole 22 are equivalent to same-phase radiation sound source, have certain
Radiation directivity, there is maximum on the direction on surface for being parallel to the front screen 23, perpendicular to the front
There is minimum on the direction on the surface of screen 23, thus, human ear can guarantee logical when receiving calls in certain degree
The privacy of words.
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 (10)
1. a kind of electronic equipment, which is characterized in that the electronic equipment includes shell and loudspeaker assembly, and the shell has phase
To the front sound outlet hole and back side sound outlet hole of setting, the loudspeaker assembly is arranged in the shell, the loudspeaker assembly
Including a loudspeaker monomer and a power amplifier, the loudspeaker monomer includes the first vibrating diaphragm, the second vibrating diaphragm, magnetic circuit component, First Line
Circle and the second coil, between first vibrating diaphragm and second vibrating diaphragm, the magnetic circuit component is formed the magnetic circuit component
Towards the first gap of first vibrating diaphragm and towards the second gap of second vibrating diaphragm, the first coil is arranged described
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, and the first coil and second coil are connect with the power amplifier, and the power amplifier pushes away
It moves first vibrating diaphragm and the second vibrating diaphragm same-phase vibrates generated sound and passes through the front sound outlet hole and institute respectively
State the output of back side sound outlet hole.
2. electronic equipment according to claim 1, which is characterized in that the magnetic circuit component includes magnetic conductive disk, the first magnet
At least one second magnet, between first vibrating diaphragm and second vibrating diaphragm, the magnetic conductive disk includes the magnetic conductive disk
Annulus that section is in U-shape and flange part made of being extended vertically outward from the open end of the annulus, the annulus
Inside form the first receiving portion, first receiving portion towards first vibrating diaphragm, the flange part and the annulus
The second receiving portion is formed between outer wall, towards second vibrating diaphragm, first magnet is housed in described for second receiving portion
First receiving portion forms first gap, and at least one second magnet, which is housed in second receiving portion, forms described
Two gaps.
3. electronic equipment according to claim 2, which is characterized in that at least one second magnet includes one described the
Two magnet, second magnet is annular in shape, and around the outer wall of the annulus to form second gap.
4. electronic equipment according to claim 2, which is characterized in that at least one second magnet includes two described the
Two magnet, two second magnet arcuation in a ring, outer wall of two second magnet intermittently around the annulus
To form second gap, also, two second magnet are in the same circumference centered on the center of the annulus
On line.
5. electronic equipment according to claim 4, which is characterized in that two second magnet are with the annulus
It is symmetrical arranged on same circumference centered on center.
6. electronic equipment according to claim 1, which is characterized in that the vibrating diaphragm further includes bracket, the support ring around
The magnetic circuit component, the first coil and second coil setting, also, first vibrating diaphragm overlap joint is arranged in the branch
On the top of frame, the second vibrating diaphragm overlap joint is arranged on the bottom end of the bracket.
7. electronic equipment according to claim 6, which is characterized in that the support ring around its peripheral wall be provided with it is cricoid go out
Sound guide tube is formed between the inner wall on the top of sound hole, the outer wall of the bracket and the shell, the sound guide tube is connected to institute
Front sound outlet hole and the sound outlet hole are stated, the sound guide tube is also connected to the back side sound outlet hole and the sound outlet hole.
8. electronic equipment according to claim 1, which is characterized in that the anode of the first coil and second coil
Anode connect, it is positive and negative with the power amplifier respectively after the cathode of the cathode of the first coil and second coil connects
Pole connection.
9. electronic equipment according to claim 1, which is characterized in that the shell includes front screen, back side battery cover
And the top of the connection front screen and the back side battery cover, the front sound outlet hole setting are adjacent in the front screen
At the position on the nearly top, the back side battery cover is arranged at the position on the top in the back side sound outlet hole.
10. electronic equipment according to claim 9, which is characterized in that the front sound outlet hole and the back side sound outlet hole
In gap band, when the front sound outlet hole and the back side sound outlet hole are used for output low frequency sound, it is being parallel to the front screen
Surface direction on there is maximum, there is minimum on the direction on the surface perpendicular to the front screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810852298.7A CN109151680B (en) | 2018-07-27 | 2018-07-27 | Electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810852298.7A CN109151680B (en) | 2018-07-27 | 2018-07-27 | Electronic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109151680A true CN109151680A (en) | 2019-01-04 |
| CN109151680B CN109151680B (en) | 2020-09-04 |
Family
ID=64798421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810852298.7A Active CN109151680B (en) | 2018-07-27 | 2018-07-27 | Electronic device |
Country Status (1)
| Country | Link |
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| CN (1) | CN109151680B (en) |
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| CN109756828A (en) * | 2019-01-15 | 2019-05-14 | 歌尔股份有限公司 | Sounding device and electronic equipment |
| CN109936803A (en) * | 2019-02-26 | 2019-06-25 | 华为终端有限公司 | Loudspeaker, loudspeaker assembly and portable electronic device |
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| 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 |
| CN112492065A (en) * | 2019-09-12 | 2021-03-12 | 华为技术有限公司 | Display terminal |
| EP3855760A1 (en) * | 2020-01-22 | 2021-07-28 | GP Acoustics International Limited | Dual diaphragm coaxial coils speaker |
| CN113330753A (en) * | 2019-02-07 | 2021-08-31 | 迈特控股有限公司 | Online damper bellows dual opposing driver speaker |
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| US11570556B2 (en) | 2014-01-06 | 2023-01-31 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
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| US11582564B2 (en) | 2014-01-06 | 2023-02-14 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
| US11617045B2 (en) | 2014-01-06 | 2023-03-28 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
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