CN208112935U - A kind of loudspeaker mould group - Google Patents
A kind of loudspeaker mould group Download PDFInfo
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- CN208112935U CN208112935U CN201820630966.7U CN201820630966U CN208112935U CN 208112935 U CN208112935 U CN 208112935U CN 201820630966 U CN201820630966 U CN 201820630966U CN 208112935 U CN208112935 U CN 208112935U
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- vibrating diaphragm
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Abstract
The utility model discloses a kind of loudspeaker mould group, including module shell and the loudspeaker monomer being fixed in the module shell；The loudspeaker monomer includes magnetic circuit system and vibrating diaphragm, the cavity that the module shell surrounds is divided into the preceding operatic tunes and the rear operatic tunes by the vibrating diaphragm, the magnetic circuit system of the loudspeaker monomer is located in the rear cavity space, and the side that the vibrating diaphragm is located at the preceding operatic tunes is fixed with the second voice coil；Second voice coil is corresponded to before the module shell in the operatic tunes and is provided with the second magnetic circuit system, second magnetic circuit system is formed with the second magnetic gap for accommodating second voice coil；Outlet sound mouth is formed between the vibrating diaphragm and second magnetic circuit system, mould group outlet sound mouth is formed on the module shell, the preceding operatic tunes further comprises the channel of speaking for being connected to the outlet sound mouth Yu the mould group outlet sound mouth, the driving force of vibrating diaphragm can be improved in the utility model, the loudness for enhancing mould group sounding, improves the acoustical behavior of product.
Description
Technical field
The utility model relates to acoustic-electric switch technology fields.More particularly, to a kind of loudspeaker mould group.
Background technique
As science and technology is grown rapidly, audio frequency apparatus is widely used along with the electronic products such as mobile phone, PAD, computer, and by
Gradually it is known.People also gradually have increasingly higher demands to audio frequency apparatus effect provisioned in electronic equipment.
Loudspeaker mould group is that the important acoustic element of electroacoustic conversion is realized in audio frequency apparatus, generally includes module shell and sets
Loudspeaker monomer in the cavity that module shell is formed.Loudspeaker monomer generally includes vibrational system and magnetic circuit system.Wherein,
Vibrational system generally includes the vibrating diaphragm and voice coil being fixed together, and the cavity that vibrating diaphragm surrounds module shell is divided into the preceding operatic tunes with after
The operatic tunes.Magnetic circuit system is equipped in the operatic tunes afterwards, magnetic circuit system is formed with the magnetic gap for accommodating voice coil one end.It is external when mould group works
Circuit to voice coil input electric energy, vibrate under the action of the magnetic field of magnetic circuit system by energized coils, to drive diaphragm oscillations sounding.
Continuous improvement with consumer to audio frequency apparatus functional requirement, single vibrational system and magnetic circuit in existing loudspeaker mould group
System structure, significantly limits the sensitivity of product and the promotion of volume, and the acoustical behavior of electronic product is to be improved.
Accordingly, it is desirable to provide a kind of new loudspeaker modular structure, improves the sensitivity and acoustical behavior of loudspeaker mould group.
Utility model content
One purpose of the utility model is to be to provide a kind of loudspeaker mould group, improve loudspeaker mould group sensitivity and
Loudness improves the acoustical behavior of electronic product.
In order to achieve the above objectives, the utility model adopts the following technical solutions：
The utility model discloses a kind of loudspeaker mould groups, including module shell and are fixed in the module shell
Loudspeaker monomer；The loudspeaker monomer includes magnetic circuit system and vibrating diaphragm, the cavity that the vibrating diaphragm surrounds the module shell
It is divided into the preceding operatic tunes and the rear operatic tunes, the magnetic circuit system of the loudspeaker monomer is located in the rear cavity space,
The side that the vibrating diaphragm is located at the preceding operatic tunes is fixed with the second voice coil；
Second voice coil is corresponded to before the module shell in the operatic tunes and is provided with the second magnetic circuit system, second magnetic circuit system
System is formed with the second magnetic gap for accommodating second voice coil；
It is formed with outlet sound mouth between the vibrating diaphragm and second magnetic circuit system, mould group is formed on the module shell and is spoken
Mouthful, the preceding operatic tunes further comprises the channel of speaking for being connected to the outlet sound mouth Yu the mould group outlet sound mouth.
Preferably, the magnetic circuit system of the loudspeaker monomer include the first centring magnet, the first center magnetic conductive board and
First magnetic yoke, first centring magnet is corresponding with the central area position of the vibrating diaphragm, and first magnetic yoke is arranged described
Leaning on for first centring magnet is arranged in the side far from the vibrating diaphragm of first centring magnet, first center magnetic conductive board
The side of the nearly vibrating diaphragm.
Preferably, first magnetic yoke includes flat magnetic yoke bottom wall and along the vertically extending magnetic of magnetic yoke bottom wall edge
The side wall of yoke side wall, the magnetic yoke side wall and the first centring magnet forms the first magnetic gap；The loudspeaker monomer further includes
One voice coil, first voice coil be set in first magnetic gap and with the vibrating diaphragm secure bond.
Preferably, the magnetic circuit system further comprise first in magnet and first magnetic conductive board, first side magnet
The outside of first centring magnet is set, described first when magnetic conductive board is arranged described first magnet close to the vibrating diaphragm
Side, first centring magnet and first side magnet form the first magnetic gap；The loudspeaker monomer further includes
One voice coil, first voice coil be set in first magnetic gap and with the vibrating diaphragm secure bond.
Preferably, first magnetic yoke includes flat magnetic yoke bottom wall and along the vertically extending magnetic of magnetic yoke bottom wall edge
Yoke side wall, first side magnet are fixed on the magnetic yoke bottom wall, and are located at the inside of magnetic yoke side wall.
Preferably, second magnetic circuit system includes the second centring magnet and the second center magnetic conductive board, second center
Magnet module shell inner surface corresponding with the vibrating diaphragm central area is relatively fixed, and second center magnetic conductive board is arranged in institute
The side close to the vibrating diaphragm of the second centring magnet is stated, second magnetic gap is located at the side wall of second centring magnet
Outside.
Preferably, second magnetic circuit system further comprises being fixed on the module shell and second centring magnet
Between the second central magnetic yoke.
Preferably, second magnetic circuit system further comprises the second side magnetic being set on the outside of second centring magnet
Iron and the second side magnetic conductive board, the second side magnet and module shell inner surface are relatively fixed, and second side magnetic conductive board is arranged in institute
It states the second side magnet and forms second magnetic close to the side of the vibrating diaphragm, second centring magnet and second side magnet
Gap.
Preferably, second magnetic circuit system further comprises being fixed between the module shell and second side magnet
The second side magnetic yoke.
Preferably, the loudspeaker monomer and second voice coil form the circuit structure of serial or parallel connection, the loudspeaking
Device monomer and the second voice coil are configured as receiving identical voice signal.
The beneficial effects of the utility model are as follows：
Vibrating diaphragm in the utility model loudspeaker mould group loudspeaker monomer, which is located on the surface of the preceding operatic tunes, is fixed with the second sound
It encloses, is further provided with the second magnetic circuit system corresponding with the second voice coil in the operatic tunes before mould group.It, can be to the second sound when mould group works
Input audio electric current in circle, the second voice coil vibrate drive under the action of the magnetic circuit system of loudspeaker monomer and the second magnetic circuit system
Diaphragm oscillations sounding.Therefore, under the input of identical tone currents, vibrating diaphragm is subject in the loudspeaker mould group of the utility model drive
Power is bigger, and the vibration sensitivity and Oscillation Amplitude of vibrating diaphragm improve, so that the sound quality of loudspeaker mould group improves, sounding loudness increases
Add, there is stronger acoustical behavior.
Detailed description of the invention
Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawing.
Fig. 1 shows a kind of decomposition diagram of loudspeaker mould group specific embodiment of the utility model；
Fig. 2 shows a kind of diagrammatic cross-sections of loudspeaker mould group specific embodiment of the utility model；
Appended drawing reference：
1, module shell, 101, upper casing, 102, lower casing, 121, filling aperture, 122, foam, 2, monomer shell, 3, vibrating diaphragm, 4,
First voice coil, the 5, second voice coil, 6, outlet sound mouth, the 7, first centring magnet, the 8, first center magnetic conductive board, the 9, first magnetic yoke, 10,
One side magnet, the 11, first side magnetic conductive board, the 12, second centring magnet, the 13, second center magnetic conductive board, the 14, second side magnet, 15,
Second side magnetic conductive board, 16, groove, 17, channel of speaking.
Specific embodiment
In order to illustrate more clearly of the utility model, the utility model is done into one below with reference to preferred embodiments and drawings
The explanation of step.Similar component is indicated in attached drawing with identical appended drawing reference.It will be appreciated by those skilled in the art that below
Specifically described content is illustrative and be not restrictive, and should not be limited the protection scope of the present invention.
Fig. 1 and Fig. 2 be shown respectively a kind of decomposition diagram of one specific embodiment of loudspeaker mould group of the utility model and
Diagrammatic cross-section.
In the present embodiment, loudspeaker mould group includes module shell 1 and the loudspeaker list that is fixed in the module shell 1
Body, the loudspeaker monomer includes magnetic circuit system and vibrating diaphragm 3, before the cavity that the module shell 1 surrounds is divided by the vibrating diaphragm 3
The operatic tunes and the rear operatic tunes.In the present embodiment, the module shell 1 includes the upper casing 101 and lower casing 102 being correspondingly arranged.
The side surface that the vibrating diaphragm 3 is located at the preceding operatic tunes is fixed with the second voice coil 5.Before the module shell operatic tunes be equipped with
Corresponding second magnetic circuit system of second voice coil 5, the second magnetic circuit system are formed with the second magnetic gap, can hold in the second magnetic gap
Receive one end of second voice coil 5.In the present embodiment, module shell is equipped with the stage portion for fixing vibrating diaphragm 3, it is preferable that
The vibrating diaphragm 3 can be first fixed on the monomer shell 2 of loudspeaker monomer, and then monomer shell 2 is fixed in the stage portion,
So as to which vibrating diaphragm 3 to be fixed in loudspeaker mould group, the space for surrounding vibrating diaphragm 3 by module shell is divided into mutual disconnected preceding sound
Chamber and the rear operatic tunes.
Second voice coil 5 is suspended in second magnetic gap far from the end of the vibrating diaphragm 3, is inputted when on the second voice coil 5
When tone currents, the second voice coil 5 and the magnetic field of loudspeaker monomer magnetic circuit system and the magnetic field interaction of the second magnetic circuit system, sound
Circle is driven the effect of power and moves, to drive 3 vibration sounding of vibrating diaphragm.Therefore, under the input of identical tone currents, this
The driving force that vibrating diaphragm 3 is subject in the loudspeaker mould group of utility model is stronger, and the vibration sensitivity and amplitude of vibrating diaphragm 3 can be improved, from
And the sound quality of loudspeaker mould group improves, sounding loudness increases, the loudspeaker mould group of the utility model has stronger acoustical behavior.
Preferably embodiment, in the present embodiment, the vibrating diaphragm 3 can also be set away from the side of second voice coil 5
The first voice coil 4 is set, one end of the separate vibrating diaphragm 3 of the first voice coil 4 can be placed in the magnetic gap that the magnetic circuit system of loudspeaker monomer is formed
In.It is identical that first voice coil 4 and the second voice coil 5 can be configured to starting of oscillation direction, and inputs phase in the first voice coil 4 and the second voice coil 5
Same tone currents, makes the first voice coil 4 and the vibration trend having the same of the second voice coil 5, vibrating diaphragm 3 is in the first voice coil 4 and second
The lower vibration sounding of the common drive of 5 two voice coils of voice coil.Therefore, under the input of identical tone currents, the loudspeaking of the present embodiment
Driving force effect of the vibrating diaphragm 3 by two voice coils in device mould group, driving force is stronger, and vibration sensitivity and the vibration of vibrating diaphragm 3 can be improved
Width, so that the sound quality of loudspeaker mould group improves, sounding loudness increases, the loudspeaker mould group of the utility model has stronger acoustics
Performance.
It is preferably carried out mode as one kind, the magnetic circuit system may include center magnetic path, and center magnetic path includes in first
Heart magnet 7, the first center magnetic conductive board 8 and the first magnetic yoke 9, the central area position of first centring magnet 7 and the vibrating diaphragm 3
Corresponding, the side far from the vibrating diaphragm 3 of first centring magnet 7 is arranged in first magnetic yoke 9, and first center is led
The side close to the vibrating diaphragm 3 of first centring magnet 7 is arranged in magnetic sheet 8, and first magnetic gap is located at described first
The outside of the side wall of centring magnet 7.
In a specific embodiment, first magnetic yoke 9 may include flat magnetic yoke bottom wall and along magnetic yoke bottom wall
The magnetic yoke side wall that edge-perpendicular extends, first centring magnet 7 can form with magnetic yoke side wall and accommodate described first voice coil, 4 one end
The first magnetic gap.
In another specific embodiment, in order to enhance the magnetic field strength in magnetic circuit system magnetic field, the magnetic circuit system is into one
Also settable side magnetic circuit is walked, first centring magnet 7 is generally rectangular, and the first centring magnet 7 includes two opposite first
While and when two opposite second.When magnetic circuit may include being arranged in two first and/or two second while first while magnet
10 and the first side magnetic conductive board 11, first side magnet 10 outside of first centring magnet 7 is set, first side is led
First side magnet 10 is arranged in close to the side of the vibrating diaphragm 3 in magnetic sheet 11.
When only two first of the first centring magnet 7 while or two second whiles the first side magnet 10 is set when, the first side
Magnet 10 can be fixed in the first magnetic yoke 9, and the both sides of 9 unlocked first side magnet 10 of the first magnetic yoke can be folded upward to form magnetic yoke
The magnetic yoke side wall of side wall, first centring magnet 7 and the first magnetic yoke 9 and the first side magnet 10, which are formed, accommodates the first voice coil 4
The first magnetic gap.Preferably, the edge that first magnetic yoke 9 is equipped with the first side magnet 10 can also be folded upward to form magnetic yoke side
Wall makes first side magnet 10 between first centring magnet 7 and magnetic yoke side wall.
Certainly, is respectively provided with when magnetic circuit can also be at two first of the first centring magnet 7 and on the outside of two the second sides
One side magnet 10 and the first side magnetic conductive board 11 form between the first centring magnet 7 and the first side magnet 10 accommodate the first voice coil 4 at this time
First magnetic gap of one end, the first magnetic yoke 9 still can be folded upward to form magnetic yoke side wall on the outside of the magnetic circuit of side, to adjust magnetic circuit system
The Distribution of Magnetic Field of formation, the setting of the magnetic circuit system of the utility model include but is not limited to above several forms, can be according to sounding
The different flexible settings of type of device.
In the present embodiment, the second magnetic circuit system include the second centring magnet 12 and the second center magnetic conductive board 13, described second
1 inner surface of module shell corresponding with 3 central area of vibrating diaphragm of centring magnet 12 is relatively fixed, second center magnetic conductive board
13 are arranged in the side close to the vibrating diaphragm 3 of second centring magnet 12, and second magnetic gap is located in described second
The outside of the side wall of heart magnet 12.
Second magnetic circuit system further comprise second in magnet 14 and second magnetic conductive board 15, second side magnet 14
The outside of second centring magnet 12 is set, described second when magnetic conductive board 15 is arranged described second magnet 14 close to institute
The side of vibrating diaphragm 3 is stated, second centring magnet 12 is formed with second side magnet 14 accommodates described second voice coil, 5 one end
Second magnetic gap.In the present embodiment, the structure limitation based on loudspeaker is only arranged on a pair of opposite side of the second centring magnet 12
Second in magnet 14 and second magnetic conductive board 15.The structure similar with magnetic circuit system also can be used in second magnetic circuit system, herein not
It repeats again, certainly, the setting of the second magnetic circuit system includes but is not limited to above several forms, can also be according to sounding device type
Different flexible settings.
In the present embodiment, second magnetic circuit system is fixed on the inner surface of module shell 1, corresponding with the vibrating diaphragm 3,
The outlet sound mouth 6 for going out sound can be formed between second magnetic circuit system and vibrating diaphragm 3, further opened up on the module shell 1 of the preceding operatic tunes
Mould group outlet sound mouth (not shown), and the channel 17 of speaking of connection outlet sound mouth 6 and mould group outlet sound mouth, this reality are formed in the preceding operatic tunes
It applies in example, loudspeaker monomer goes out acoustic form using side, and the second magnetic circuit system may be disposed at table in the module shell 1 of the preceding operatic tunes
On face, the structure setting of the second magnetic circuit system is also more flexible, makes to shake by the space between vibrational system and the second magnetic circuit system
Film 3 vibration generate sound can be by 6 smooth outflow of outlet sound mouth to speak channel 17 and loudspeaker mould group outside.
In the present embodiment, 1 inner surface of module shell of the preceding operatic tunes, which is further also formed with, accommodates second center magnetic
The groove 16 of iron 12 and the second side magnet 14 increases the second magnetic circuit system and vibrating diaphragm 3 to reduce the height of the second magnetic circuit system
Between space, make vibrating diaphragm 3 vibration generate sound can be with smooth outflow.Second magnetic circuit system is set in the preceding operatic tunes, can be filled
Divide the space using the preceding operatic tunes, does not increase the volume of loudspeaker.
Similar with magnetic circuit system, second magnetic circuit system further may also include the second central magnetic yoke, the second center magnetic
Yoke is fixed on 1 inner surface of module shell, and second centring magnet 12 is further set in second central magnetic yoke.
Second magnetic circuit system further may also include the second side magnetic yoke, and the second side magnetic yoke is fixed on the module shell
On 1 inner surface, described second while magnet 14 further be set to described second while magnetic yoke on.Second side magnetic yoke can be by second
Heart magnetic yoke integrally extends to form, and can also be respectively set.Specifically, can be respectively set in the groove 16 of module shell 1.
The vibrating diaphragm 3 includes central part, ring portion and fixed part, and the ring portion connects the central part and fixed part
It connects, the fixed part is connected on the module shell 1, and first voice coil 4 and the second voice coil 5 are connected to the center
In the both side surface in portion.
First voice coil 4 and the second voice coil 5 form the circuit structure of serial or parallel connection, first voice coil 4 and second
Voice coil 5 is configured as receiving identical voice signal.Preferably, first voice coil 4 and the second voice coil 5 can be in miniature sounding
Circuit structure in parallel or series is formed in device, in this way, the first voice coil 4 and the second voice coil 5 can in miniature sounding device
Receive that consistency is higher, identical voice signal.This circuit configuration mode makes the first voice coil 4 and the second voice coil 5 carry out phase
With, the higher vibration action of consistency, further increase the sensitivity of miniature sounding device.
It is further also settable for improving the sound-absorbing component of loudspeaker mould group sound quality, sound-absorbing in the operatic tunes after loudspeaker mould group
Component includes the accommodation space being fixed on module shell 1 and the sound-absorbing material that is filled in the accommodation space, under described
Shell 102 is equipped with the foam 122 of filling aperture 121 and the salable filling aperture 121 being connected to the accommodation space, can be
Sound-absorbing material is filled into accommodation space by filling aperture 121 outside loudspeaker mould group, is then sealed by foam 122 filling
Hole prevents sound-absorbing material from revealing.
Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention, for those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways, all embodiments can not be exhaustive here,
It is all to belong to obvious changes or variations that the technical solution of the utility model is extended out still in the utility model
The column of protection scope.
Claims (10)
1. a kind of loudspeaker mould group, including module shell and the loudspeaker monomer being fixed in the module shell；It is described to raise
Sound device monomer includes magnetic circuit system and vibrating diaphragm, and the cavity that the module shell surrounds is divided into the preceding operatic tunes and rear sound by the vibrating diaphragm
Chamber, the magnetic circuit system of the loudspeaker monomer are located in the rear operatic tunes space, which is characterized in that
The side that the vibrating diaphragm is located at the preceding operatic tunes is fixed with the second voice coil；
Second voice coil is corresponded to before the module shell in the operatic tunes and is provided with the second magnetic circuit system, the second magnetic circuit system shape
At there is the second magnetic gap for accommodating second voice coil；
It is formed with outlet sound mouth between the vibrating diaphragm and second magnetic circuit system, mould group outlet sound mouth is formed on the module shell,
The preceding operatic tunes further comprises the channel of speaking for being connected to the outlet sound mouth Yu the mould group outlet sound mouth.
2. loudspeaker mould group according to claim 1, which is characterized in that the magnetic circuit system packet of the loudspeaker monomer
Include the first centring magnet, the first center magnetic conductive board and the first magnetic yoke, the central area of first centring magnet and the vibrating diaphragm
Position is corresponding, and the side far from the vibrating diaphragm of first centring magnet, first center is arranged in first magnetic yoke
The side close to the vibrating diaphragm of first centring magnet is arranged in magnetic conductive board.
3. loudspeaker mould group according to claim 2, which is characterized in that first magnetic yoke includes flat magnetic yoke bottom
Wall and along the vertically extending magnetic yoke side wall of magnetic yoke bottom wall edge, the side wall of the magnetic yoke side wall and the first centring magnet form the
One magnetic gap；The loudspeaker monomer further includes the first voice coil, first voice coil be set in first magnetic gap and with
The vibrating diaphragm secure bond.
4. loudspeaker mould group according to claim 2, which is characterized in that the magnetic circuit system further comprises the first side magnetic
The outside of first centring magnet, first side magnetic conductive board is arranged in iron and the first side magnetic conductive board, first side magnet
First side magnet is set close to the side of the vibrating diaphragm, first centring magnet and first side magnet form the
One magnetic gap；The loudspeaker monomer further includes the first voice coil, first voice coil be set in first magnetic gap and with
The vibrating diaphragm secure bond.
5. loudspeaker mould group according to claim 4, which is characterized in that first magnetic yoke includes flat magnetic yoke bottom
Wall and along the vertically extending magnetic yoke side wall of magnetic yoke bottom wall edge, first side magnet is fixed on the magnetic yoke bottom wall, and
Positioned at the inside of magnetic yoke side wall.
6. loudspeaker mould group according to claim 1, which is characterized in that second magnetic circuit system includes the second center magnetic
Iron and the second center magnetic conductive board, second centring magnet module shell inner surface corresponding with the vibrating diaphragm central area are opposite
Fixed, the side close to the vibrating diaphragm of second centring magnet, second magnetic is arranged in second center magnetic conductive board
Gap is located at the outside of the side wall of second centring magnet.
7. loudspeaker mould group according to claim 6, which is characterized in that second magnetic circuit system further comprises fixing
The second central magnetic yoke between the module shell and second centring magnet.
8. loudspeaker mould group according to claim 6, which is characterized in that second magnetic circuit system further comprises setting
On the outside of second centring magnet second in magnet and second while magnetic conductive board, the second side magnet and module shell inner surface phase
To fixation, described second when magnetic conductive board is arranged in described second magnet close to the side of the vibrating diaphragm, second center magnetic
Iron and second side magnet form second magnetic gap.
9. loudspeaker mould group according to claim 8, which is characterized in that second magnetic circuit system further comprises fixing
The module shell and described second between magnet second while magnetic yoke.
10. loudspeaker mould group according to claim 1, which is characterized in that the loudspeaker monomer and second voice coil
The circuit structure of serial or parallel connection is formed, the loudspeaker monomer and the second voice coil are configured as receiving identical voice signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820630966.7U CN208112935U (en) | 2018-04-28 | 2018-04-28 | A kind of loudspeaker mould group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820630966.7U CN208112935U (en) | 2018-04-28 | 2018-04-28 | A kind of loudspeaker mould group |
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| Publication Number | Publication Date |
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| CN208112935U true CN208112935U (en) | 2018-11-16 |
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| CN201820630966.7U Active CN208112935U (en) | 2018-04-28 | 2018-04-28 | A kind of loudspeaker mould group |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111970618A (en) * | 2020-10-20 | 2020-11-20 | 歌尔股份有限公司 | Sound generating device and wearable equipment |
| WO2021012226A1 (en) * | 2019-07-22 | 2021-01-28 | 瑞声声学科技(深圳)有限公司 | Sound generating device |
| WO2024045660A1 (en) * | 2022-08-31 | 2024-03-07 | 荣耀终端有限公司 | Loudspeaker module and electronic device |
-
2018
- 2018-04-28 CN CN201820630966.7U patent/CN208112935U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021012226A1 (en) * | 2019-07-22 | 2021-01-28 | 瑞声声学科技(深圳)有限公司 | Sound generating device |
| CN111970618A (en) * | 2020-10-20 | 2020-11-20 | 歌尔股份有限公司 | Sound generating device and wearable equipment |
| CN111970618B (en) * | 2020-10-20 | 2021-01-22 | 歌尔股份有限公司 | Sound generating device and wearable equipment |
| WO2024045660A1 (en) * | 2022-08-31 | 2024-03-07 | 荣耀终端有限公司 | Loudspeaker module and electronic device |
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