CN108513232A - A kind of loud speaker - Google Patents
A kind of loud speaker Download PDFInfo
- Publication number
- CN108513232A CN108513232A CN201710103738.4A CN201710103738A CN108513232A CN 108513232 A CN108513232 A CN 108513232A CN 201710103738 A CN201710103738 A CN 201710103738A CN 108513232 A CN108513232 A CN 108513232A
- Authority
- CN
- China
- Prior art keywords
- vibrating diaphragm
- loud speaker
- voice coil
- coil group
- conduction sheet
- 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
- 238000009434 installation Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 7
- 230000010355 oscillation Effects 0.000 abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 239000007787 solid Substances 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
- 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 embodiment of the invention discloses a kind of loud speakers, are related to acoustic-electric technical field.The loud speaker includes：Protecgulum, vibrating diaphragm, voice coil group and magnetic field component；The vibrating diaphragm combines installation with the protecgulum, and the protecgulum is for installing the vibrating diaphragm；The voice coil group includes at least two concatenated voice coils, and between the vibrating diaphragm and the magnetic field component, voice coil group one end is fixed on the vibrating diaphragm, and the other end is located in the gap of the magnetic field component；The voice coil group and magnetic field component cooperation drive the diaphragm oscillations sounding.Loud speaker described in the embodiment of the present invention, by the way that the single-tone coil structures of conventional moving-coil type loud speaker are changed to the concatenated mode of multitone ring, the maximum service rating of loud speaker can be greatly promoted while not increasing loud speaker volume, so that the resistance to power of loud speaker is improved and extend its service life, but also the volume of loud speaker can be improved and promote sound quality.
Description
Technical field
The present embodiments relate to acoustic-electric technical field, especially a kind of loud speaker.
Background technology
In electronics field, the electronic products such as mobile phone, tablet computer needs make a sound, and used mode is to pass through
Loud speaker sounding, and most popular is single-tone circle coil-moving speaker.Coil-moving speaker is to drive sound by alternating current
Circle vibrates in magnetic field, and diaphragm oscillations is driven to make a sound.Wherein 98% energy is converted into thermal energy, and 2% is converted into sound, and
Fever has a great impact to the power of product.For electronic product, on the one hand, it is desirable that the element sizes such as loud speaker are increasingly
It is small, on the other hand wish that sound quality is become better and better, sound is increasing.
Inventor has found at least there is following technical problem in the prior art during studying the application：
Current single-tone circle coil-moving speaker, since only there are one voice coils, when power is excessive, voice coil can largely be sent out
Heat makes underpower under the small size of Microspeaker and resistance to power is poor, cause service life relatively low until burning.
Invention content
The embodiment of the present invention is the technical problem to be solved is that, the resistance to power of loud speaker is poor.
In order to solve the above-mentioned technical problem, the loud speaker described in the embodiment of the present invention uses technical side as described below
Case：
A kind of loud speaker, including：Protecgulum, vibrating diaphragm, voice coil group and magnetic field component；
The vibrating diaphragm combines installation with the protecgulum, and the protecgulum is for installing the vibrating diaphragm；
The voice coil group includes at least two concatenated voice coils, described between the vibrating diaphragm and the magnetic field component
Voice coil group one end is fixed on the vibrating diaphragm, and the other end is located in the gap of the magnetic field component；
The voice coil group and magnetic field component cooperation drive the diaphragm oscillations sounding.
Further, the loud speaker, the impedance of concatenated voice coil is identical in the voice coil group.
Further, the loud speaker, the winding structure of concatenated voice coil is identical in the voice coil group.
Further, the loud speaker, which is characterized in that further include：Body frame；The body frame is for providing shell to combine
The protecgulum, the vibrating diaphragm, the voice coil group and the magnetic field component are installed.
Further, the loud speaker, which is characterized in that the vibrating diaphragm includes：Central vibrating diaphragm and outer vibrating diaphragm；The center
It is flexible film that vibrating diaphragm, which uses hard material, the outer vibrating diaphragm,；The center vibrating diaphragm is fixed on the outer vibrating diaphragm center, described outer
Vibrating diaphragm is fixed on the protecgulum and the body frame.
Further, the loud speaker further includes：It is fixed on the protecgulum and the fixed ring on the body frame；It is described outer
Vibrating diaphragm is socketed in the fixed ring.
Further, the loud speaker further includes：The preset pad of quantity and the preset terminal of quantity；The pad peace
It is connected in the body frame and with the voice coil group, the terminal is arranged on the pad, and the voice coil group passes through described
Terminal on pad accesses external circuit.
Further, the loud speaker, the magnetic field component include：Interior magnetic conduction sheet, upper magnetic conduction sheet, internal magnet, external magnet
With lower magnetic conduction sheet；
The internal magnet is arranged with the external magnet on the lower magnetic conduction sheet, and the interior magnetic conduction sheet is fitted in the interior magnetic
On iron, the upper magnetic conduction sheet is fitted on the external magnet；The lower magnetic conduction sheet is fixed together with the body frame, the magnetic field
Component package is in the body frame.
Further, the loud speaker, the internal magnet are located in the hole of the external magnet, and the interior magnetic conduction sheet is located at institute
In the hole for stating magnetic conduction sheet, stayed between the interior magnetic conduction sheet and the upper magnetic conduction sheet between the internal magnet and the external magnet
There are gap, one end of the voice coil group to be located in the gap.
Compared with prior art, the embodiment of the present invention mainly has following advantageous effect：
The embodiment of the invention discloses a kind of loud speakers, are related to acoustic-electric technical field.The loud speaker includes：Protecgulum shakes
Film, voice coil group and magnetic field component；The vibrating diaphragm combines installation with the protecgulum, and the protecgulum is for installing the vibrating diaphragm；It is described
Voice coil group includes at least two concatenated voice coils, and between the vibrating diaphragm and the magnetic field component, voice coil group one end is solid
Due on the vibrating diaphragm, the other end is located in the gap of the magnetic field component；The voice coil group and the magnetic field component mating band
Move the diaphragm oscillations sounding.Loud speaker described in the embodiment of the present invention, by by the single-tone loop knot of conventional moving-coil type loud speaker
Structure is changed to the concatenated mode of multitone ring, and the maximum functional work(of loud speaker can be greatly promoted while not increasing loud speaker volume
Rate makes the resistance to power of loud speaker improve and extends its service life, but also can improve the volume of loud speaker and promote sound
Matter.
Description of the drawings
Fig. 1 is the explosive view of loud speaker described in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of loud speaker described in the embodiment of the present invention；
Fig. 3 is the rearview of loud speaker described in the embodiment of the present invention；
Fig. 4 is sectional views of the Fig. 2 along line A-A of the embodiment of the present invention.
Reference sign：
In 1- protecgulums, 2- vibrating diaphragms, 3- voice coils group, 4- body frames, 5- pads, 6- terminals, 7- fixed rings, 8- magnetic field components, 21-
Magnetic conduction sheet under magnetic conduction sheet, the upper magnetic conduction sheets of 82-, 83- internal magnets, 84- external magnets, 85- in the outer vibrating diaphragm of centre vibrating diaphragm, 22-, 81-.
Specific implementation mode
To facilitate the understanding of the present invention, invention is described more fully below with reference to relevant drawings.It is given in attached drawing
Presently preferred embodiments of the present invention is gone out.But the present invention realizes in many different forms, however it is not limited to described herein
Embodiment.It is made the disclosure of the present invention more thorough and comprehensive on the contrary, purpose of providing these embodiments is.
Unless otherwise defined, all of technologies and scientific terms used here by the article and belong to the technical field of the present invention
The normally understood meaning of technical staff is identical.Used term is intended merely to description tool in the description of the invention herein
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
It is the explosive view of loud speaker described in the embodiment of the present invention with reference to figure 1.Loud speaker described in the embodiment of the present invention includes：
Protecgulum 1, vibrating diaphragm 2, voice coil group 3, body frame 4, pad 5, terminal 6, fixed ring 7 and magnetic field component 8；Wherein, vibrating diaphragm 2 includes：Center
Vibrating diaphragm 21 and outer vibrating diaphragm 22；Magnetic field component 8 includes：Interior magnetic conduction sheet 81, upper magnetic conduction sheet 82, internal magnet 83, external magnet 84 and under lead
Magnetic sheet 85.
For the protecgulum 1 for installing the vibrating diaphragm 2, the vibrating diaphragm 2 passes through vibration sounding；The voice coil group 3 includes at least
Two concatenated voice coils, the magnetic field component 8 can form the magnetic loop of closure, and the voice coil group 3 and the magnetic field component are matched
Crossed belt moves 2 vibration sounding of the vibrating diaphragm；The body frame 4 for shell is provided with combine installation protecgulum 1, vibrating diaphragm 2, voice coil group 3 with
Magnetic field component 8；Outer vibrating diaphragm 22 is fixed on protecgulum 1 and body frame 4 by the fixed ring 7 by socket；The number of pad 5 and terminal 6
Amount is predeterminable, and voice coil group 3 can access external circuit and then and external circuit by the terminal 6 being arranged on pad 5
It is electrically connected.Internal magnet 83 includes one block of magnet or the identical magnet of polylith magnetic pole, the magnetic pole of external magnet 84 and internal magnet 83
On the contrary.
Wherein, protecgulum 1 and fixed ring 7 are that hard material is molded or is made of metal material, central vibrating diaphragm 21
It is flexible film that material, which uses aluminium or hard material, outer vibrating diaphragm 22, and body frame 4 is also molded by hard material, pad 5 and end
Son 6 is conductor, and the material of interior magnetic conduction sheet 81, upper magnetic conduction sheet 82 and lower magnetic conduction sheet 85 is mild steel.
In the embodiment of the present invention, voice coil group 3 includes two concatenated voice coils, and internal magnet 83 includes the identical magnetic of two pieces of magnetic poles
Iron.It is the structural schematic diagram of loud speaker described in the embodiment of the present invention with reference to figure 2；With reference to figure 3, to be raised described in the embodiment of the present invention
The rearview of sound device；It is sectional views of the Fig. 2 along line A-A of the embodiment of the present invention with reference to figure 4.In conjunction with shown in Fig. 2, Fig. 3 and Fig. 4,
Vibrating diaphragm 2 and protecgulum 1 are combined installation, and vibrating diaphragm 2 is encapsulated in body frame 4 by protecgulum 1, wherein the outer vibrating diaphragm 22 of vibrating diaphragm 2 is
Racetrack structure, central vibrating diaphragm 21 are fixed in the hole in 22 center of outer vibrating diaphragm, and outer vibrating diaphragm 22 is fixed by being socketed in fixed ring 7
On protecgulum 1 and body frame 4.For voice coil group 3 between vibrating diaphragm 3 and magnetic field component 8, one end of voice coil group 3 is fixed on central vibrating diaphragm
On 21, the other end is suspended in the gap of magnetic field component 8.The predeterminable pad 5 of quantity is mounted in body frame 4 and connects with voice coil group
Logical, the predeterminable terminal 6 of quantity is arranged on pad 5, and voice coil group 3 can then pass through the terminal 6 being arranged on pad 5 and outside
Circuit is electrically connected.Magnetic field component 8 is mounted in body frame 4, wherein internal magnet 83 is placed on lower magnetic conduction sheet 85 with external magnet 84
On, and set there are two hole among external magnet 84, external magnet 84 is located in the hole of external magnet 84, the height of external magnet 84 and internal magnet 83
It spends close；Interior magnetic conduction sheet 81 is fitted on internal magnet 83, and upper magnetic conduction sheet 82 is fitted on external magnet 84, same among upper magnetic conduction sheet 82
Sample is set there are two hole, and interior magnetic conduction sheet 81 is located in the hole of upper magnetic conduction sheet 82；Lower magnetic conduction sheet 85 is fixedly connected with body frame 4.The magnetic
The combination installation post package of field assembly 8 is in body frame 4, between internal magnet 83 and external magnet 84 and interior magnetic conduction sheet 81 and upper magnetic conduction sheet 82
Between there are gap, be the gapped magnetic field of magnetic field component 8, the lower end of voice coil group 3 is located in the gapped magnetic field.
In embodiments of the present invention, concatenated voice coil in voice coil group 3, the construction of the coiling of the voice coil and its winding mode
Unanimously, i.e. the construction of voice coil and impedance all same.
Those of ordinary skill in the art are to be understood that：The magnetic direction of internal magnet 83 and external magnet 84 be all it is vertical, it is interior
Magnetic field by vertically leading as transverse direction, is formed the magnetic loop of closure by magnetic conduction sheet 81, upper magnetic conduction sheet 82 and lower magnetic conduction sheet 85.Give voice coil group
3 are passed through alternating current, since current direction and magnetic direction are vertical, then will produce the vertical movement of cutting magnetic field, concatenated at this time
Voice coil drives central vibrating diaphragm 21 and outer vibrating diaphragm 22 to be vibrated, to make a sound.And because of the impedance and coiling of each voice coil
Mode is consistent, so voice coil vibrations mode is not in polarization phenomena as Oscillation Amplitude.The structure of multitone ring can also drop
Low total harmonic distortion is to promote sound quality.In the loud speaker of identical size, it is assumed that its in traditional single-tone circle coil-moving speaker
Voice coil impedance magnitude is a, in the case that voice coil impedance magnitude is constant in the loud speaker described in the embodiment of the present invention, concatenated sound
Number of turns amount is n, then the impedance of each voice coil is a/n.When loud speaker input power is identical, raising one's voice described in the embodiment of the present invention
Device, since its voice coil is cascaded structure, each voice coil bears the voice coil that power is only traditional single-tone circle coil-moving speaker
The 1/n of born power, then the resistance to power higher of loud speaker described in the embodiment of the present invention, can bear n times of traditional list
The input power of voice coil coil-moving speaker；Due to the resistance to power higher of the loudspeaker voice coil described in the embodiment of the present invention, when
When it is worked with maximal input, the volume of bigger can be generated.
Loud speaker described in the embodiment of the present invention, by the way that the single-tone coil structures of conventional moving-coil type loud speaker are changed to multitone ring
Concatenated mode can greatly promote the maximum service rating of loud speaker while not increasing loud speaker volume, make loud speaker
Resistance to power be improved and extend its service life, the volume of loud speaker can also be improved and promote sound quality, and passed through
The assembling mode of its convenient, upper and lower combination type, keeps scientific structure compact and secured, and can reduce the fraction defective of production.
The present invention is not limited to the above embodiment, the above is the preferred embodiment of the present invention, which only uses
In illustrating the present invention rather than limit the scope of the invention, it is noted that those skilled in the art are come
It says, without departing from the principle of the present invention, some improvements and modifications can also be made, the improvement of such equivalent forms and repair
Decorations also should be regarded as including within the scope of the present invention.
Claims (9)
1. a kind of loud speaker, which is characterized in that including：Protecgulum (1), vibrating diaphragm (2), voice coil group (3) and magnetic field component (8)；
The vibrating diaphragm (2) combines installation with the protecgulum (1), and the protecgulum (1) is for installing the vibrating diaphragm (2)；
The voice coil group (3) includes at least two concatenated voice coils, between the vibrating diaphragm (2) and the magnetic field component (8),
Described voice coil group (3) one end is fixed on the vibrating diaphragm (2), and the other end is located in the gap of the magnetic field component (8)；
The voice coil group (3) and the magnetic field component (8) cooperation drive vibrating diaphragm (2) vibration sounding.
2. loud speaker according to claim 1, which is characterized in that the impedance phase of concatenated voice coil in the voice coil group (3)
Together.
3. loud speaker according to claim 2, which is characterized in that concatenated voice coil around knot in the voice coil group (3)
Structure is identical.
4. loud speaker according to claim 1, which is characterized in that further include：Body frame (4)；The body frame (4) is for providing
Shell is to combine the installation protecgulum (1), the vibrating diaphragm (2), the voice coil group (3) and the magnetic field component (8).
5. loud speaker according to claim 4, which is characterized in that the vibrating diaphragm (2) includes：It central vibrating diaphragm (21) and shakes outside
Film (22)；It is flexible film that the center vibrating diaphragm (21), which uses hard material, the outer vibrating diaphragm (22),；The center vibrating diaphragm (21)
It is fixed on outer vibrating diaphragm (22) center, the outer vibrating diaphragm (22) is fixed on the protecgulum (1) and the body frame (4).
6. loud speaker according to claim 5, which is characterized in that further include：It is fixed on the protecgulum (1) and the body frame
(4) fixed ring (7) on；The outer vibrating diaphragm (22) is socketed in the fixed ring (7).
7. loud speaker according to claim 4, which is characterized in that further include：The preset pad of quantity (5) and quantity are default
Terminal (6)；The pad (5) is mounted in the body frame (4) and is connected to the voice coil group (3), terminal (6) setting
On the pad (5), the voice coil group (3) accesses external circuit by the terminal (6) on the pad (5).
8. loud speaker according to claim 4, which is characterized in that the magnetic field component (8) includes：Interior magnetic conduction sheet (81),
Upper magnetic conduction sheet (82), internal magnet (83), external magnet (84) and lower magnetic conduction sheet (85)；
The internal magnet (83) is arranged with the external magnet (84) on the lower magnetic conduction sheet (85), interior magnetic conduction sheet (81) patch
It closes on the internal magnet (83), the upper magnetic conduction sheet (82) is fitted on the external magnet (84)；The lower magnetic conduction sheet (85)
It is fixed together with the body frame (4), the magnetic field component (8) is encapsulated in the body frame (4).
9. loud speaker according to claim 8, which is characterized in that the internal magnet (83) is located at the external magnet (84)
Kong Zhong, the interior magnetic conduction sheet (81) are located in the hole of the upper magnetic conduction sheet (82), the internal magnet (83) and the external magnet
(84) there are gap, one end of the voice coil group (3) between the interior magnetic conduction sheet (81) and the upper magnetic conduction sheet (82) between
In the gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710103738.4A CN108513232A (en) | 2017-02-24 | 2017-02-24 | A kind of loud speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710103738.4A CN108513232A (en) | 2017-02-24 | 2017-02-24 | A kind of loud speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108513232A true CN108513232A (en) | 2018-09-07 |
Family
ID=63373844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710103738.4A Pending CN108513232A (en) | 2017-02-24 | 2017-02-24 | A kind of loud speaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108513232A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114501259A (en) * | 2021-06-29 | 2022-05-13 | 荣耀终端有限公司 | Kernel, loudspeaker module and electronic equipment |
| CN117082418A (en) * | 2023-10-16 | 2023-11-17 | 瑞声光电科技(常州)有限公司 | Sounding device |
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| CN2233147Y (en) * | 1995-03-08 | 1996-08-14 | 王宝阳 | Speaker |
| CN2266243Y (en) * | 1996-06-13 | 1997-10-29 | 陈正宗 | Coaxial double-field double-voice coil loudspeaker |
| CN201789621U (en) * | 2010-05-06 | 2011-04-06 | 歌尔声学股份有限公司 | Moving-coil type acoustic generator |
| CN103281655A (en) * | 2013-04-16 | 2013-09-04 | 沙文金 | Double-voice coil moving-coil loudspeaker |
| CN103379413A (en) * | 2012-04-12 | 2013-10-30 | 鄂雨松 | Dual-voice-coil dual-magnet moving-coil loudspeaker |
| CN103945311A (en) * | 2014-04-24 | 2014-07-23 | 中山市天键电声有限公司 | Novel double-moving-coil type loudspeaker |
| CN104936108A (en) * | 2015-06-11 | 2015-09-23 | 胡锦翔 | Bone conduction loudspeaker device |
| CN204741560U (en) * | 2015-05-13 | 2015-11-04 | 江门市益利达汽车电子有限公司 | Super ultra -thin overweight bass moving coil loudspeaker |
| CN205491114U (en) * | 2016-01-18 | 2016-08-17 | 瑞声光电科技(常州)有限公司 | Micro loudspeaker |
| CN106101959A (en) * | 2016-07-18 | 2016-11-09 | 瑞声科技(新加坡)有限公司 | Speaker |
-
2017
- 2017-02-24 CN CN201710103738.4A patent/CN108513232A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2233147Y (en) * | 1995-03-08 | 1996-08-14 | 王宝阳 | Speaker |
| CN2266243Y (en) * | 1996-06-13 | 1997-10-29 | 陈正宗 | Coaxial double-field double-voice coil loudspeaker |
| CN201789621U (en) * | 2010-05-06 | 2011-04-06 | 歌尔声学股份有限公司 | Moving-coil type acoustic generator |
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| CN103945311A (en) * | 2014-04-24 | 2014-07-23 | 中山市天键电声有限公司 | Novel double-moving-coil type loudspeaker |
| CN204741560U (en) * | 2015-05-13 | 2015-11-04 | 江门市益利达汽车电子有限公司 | Super ultra -thin overweight bass moving coil loudspeaker |
| CN104936108A (en) * | 2015-06-11 | 2015-09-23 | 胡锦翔 | Bone conduction loudspeaker device |
| CN205491114U (en) * | 2016-01-18 | 2016-08-17 | 瑞声光电科技(常州)有限公司 | Micro loudspeaker |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114501259A (en) * | 2021-06-29 | 2022-05-13 | 荣耀终端有限公司 | Kernel, loudspeaker module and electronic equipment |
| CN114501259B (en) * | 2021-06-29 | 2023-05-23 | 北京荣耀终端有限公司 | Kernel, loudspeaker module and electronic equipment |
| CN117082418A (en) * | 2023-10-16 | 2023-11-17 | 瑞声光电科技(常州)有限公司 | Sounding device |
| CN117082418B (en) * | 2023-10-16 | 2024-02-20 | 瑞声光电科技(常州)有限公司 | Sounding device |
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