CN208940223U - Sounding device and mobile terminal - Google Patents
Sounding device and mobile terminal Download PDFInfo
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- CN208940223U CN208940223U CN201821896136.5U CN201821896136U CN208940223U CN 208940223 U CN208940223 U CN 208940223U CN 201821896136 U CN201821896136 U CN 201821896136U CN 208940223 U CN208940223 U CN 208940223U
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- acoustical generator
- acoustic aperture
- generator monomer
- sounding device
- shell
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Abstract
The utility model relates to a kind of sounding device and mobile terminals.The sounding device includes: shell, and accommodating chamber is formed in shell, and shell is formed with side on the side wall of accommodating chamber and goes out acoustic aperture, and side goes out acoustic aperture and accommodating chamber is in communication with the outside；Acoustical generator monomer, acoustical generator monomer is installed in shell and accommodating chamber is divided into the preceding operatic tunes and the rear operatic tunes, the preceding operatic tunes goes out acoustic aperture with side and is connected to, and the roof of the top corresponding housing of acoustical generator monomer and the between the two operatic tunes before formation, roof includes the first planar portions being located in the same horizontal plane；Speaking the one side edge and the distance between the first planar portions in hole at the top of acoustical generator monomer by nearside, greater than the distance between one side edge and the first planar portions that the separate side at the top of acoustical generator monomer goes out acoustic aperture.One of the utility model has technical effect that, reduces the air-flow velocity in the preceding operatic tunes.
Description
Technical field
The utility model belongs to electroacoustic transduction technical field, and specifically, the utility model relates to a kind of sounding devices.
Background technique
Consumer electronics product is rapidly developed in recent years, and the electronic equipments such as mobile phone, tablet computer are made extensively by user
With.Wherein Microspeaker is important electroacoustic transduction element, in consumer electronics product using Microspeaker as earpiece,
The sound-generating elements such as loudspeaker.With the gradually development of the relevant technologies, requirement and phase of the consumer to the acoustical behavior of electronic equipment
To also higher and higher.
In the prior art, miniature sounding device conduct is usually generallyd use in the electronic equipments such as mobile phone, tablet computer
Earpiece or outgoing loudspeaker.In order to meet the lightening design needs of electronic product, the miniature sounding device tool now generallyd use
There is side to go out acoustic aperture, sound is spread out of from the direction vibrated perpendicular to sounding device.But with the development of miniature sounding device, surpass
Linear excursion has been increasingly becoming an emphasis improvement direction of miniature sounding device.This sounding device is at work
With bigger amplitude, have the advantages that sound intensity is bigger.In this case, the air mass flow in miniature sounding device and
Flow velocity is consequently increased.Air can generate air-flow sound when flowing through cavernous structure, if the flow and flow rate of air-flow increases to centainly
Degree, air-flow sound can become apparent from.Since miniature sounding device is now portalled using side, flow out in acoustic aperture out for air stream
Logical space is relatively narrow.Therefore, after the working amplitude of miniature sounding device increases, air-flow sound is become apparent, and noise increases
Greatly, hence it is evident that influence the acoustical behavior of miniature sounding device.
Utility model content
One purpose of the utility model is to provide a kind of improved sounding device.
One aspect according to the present utility model provides a kind of sounding device, comprising:
Shell is formed with accommodating chamber in the shell, and the shell is formed with side on the side wall of the accommodating chamber and speaks
Hole, the side go out acoustic aperture and the accommodating chamber are in communication with the outside；
Acoustical generator monomer, the acoustical generator monomer are installed in the shell and the accommodating chamber are divided into the preceding operatic tunes with after
The operatic tunes, the preceding operatic tunes go out acoustic aperture with the side and are connected to, the roof and the two of the top corresponding housing of the acoustical generator monomer
Between formed before the operatic tunes, the roof includes the first planar portions being located in the same horizontal plane；
Going out between the one side edge of acoustic aperture and first planar portions at the top of the acoustical generator monomer close to the side
Distance, greater than going out between the one side edge of acoustic aperture and first planar portions at the top of the acoustical generator monomer far from the side
Distance.
Optionally, the bottom wall of acoustical generator monomer bottom corresponding housing, the bottom wall are flat including being parallel to described first
Second planar portions of face, the one side edge and second plane for going out acoustic aperture far from the side of acoustical generator monomer bottom
The distance between portion, greater than the one side edge and second plane for going out acoustic aperture close to the side of acoustical generator monomer bottom
The distance between portion.
Optionally, the close side of the acoustical generator monomer goes out the one of the acoustic aperture roof direction for being laterally away from the shell
Inclination, the preceding operatic tunes are formed by going out side that a laterally closer side of acoustic aperture goes out acoustic aperture far from the side and are gradually expanded
Bell-mouth structure of air.
Optionally, the acoustical generator monomer is cuboid-type.
Optionally, the acoustical generator monomer includes:
Vibration component, the vibration component include vibrating diaphragm and voice coil, and the voice coil is connected to described in the direction of the vibrating diaphragm
Afterwards in the rear surface of the operatic tunes；
Magnetic circuit system is formed with magnetic gap in the magnetic circuit system, and the voice coil is suspended from the magnetic gap, the magnetic circuit
System tilt is arranged in the accommodating chamber.
Optionally, the shell includes upper casing, and the side goes out acoustic aperture and is opened on the upper casing, and the roof is located at described
On upper casing, the operatic tunes before being formed between the acoustical generator monomer and the upper casing；
Plummer is equipped on the upper casing, the edge part of the acoustical generator monomer is fixed on the plummer, described
The table top of plummer is inclined surface, and the table top of the plummer goes out the one of acoustic aperture from the close side and is laterally away from the shell
The inclination of roof direction.
Optionally, the plummer has a notch in the side for going out acoustic aperture close to the side, and the side goes out under acoustic aperture has
Hole wall, the acoustical generator monomer are abutted by the speak side wall surface of hole side of nearside with the lower hole wall.
Optionally, the plummer is the ring structure having there are four edge, four Bian Quan at the top of the acoustical generator monomer
Portion is fixed on the plummer.
Optionally, it is greater than 0 degree with the angle of first planar portions at the top of the acoustical generator monomer and is less than or equal to 45
Degree.
Optionally, it is greater than or equal to 1 degree with the angle of first planar portions at the top of the acoustical generator monomer, is less than or waits
In 5 degree.
The utility model additionally provides a kind of mobile terminal, before the mobile terminal includes front panel, rear panel and connection
The frame of panel and rear panel, which is characterized in that including the above-mentioned sounding device being installed in the mobile terminal, described first
Planar portions are parallel with the front panel and the rear panel.
One of the utility model has technical effect that, can reduce the air velocity in sounding device, weakens air-flow sound.
By the detailed description referring to the drawings to the exemplary embodiment of the utility model, the utility model it is other
Feature and its advantage will become apparent.
Detailed description of the invention
The attached drawing for constituting part of specification describes the embodiments of the present invention, and uses together with the description
In explanation the principles of the present invention.
Fig. 1 is the side cross sectional views of sounding device provided by the utility model；
Fig. 2 is the side cross sectional views of the sounding device in another embodiment provided by the utility model.
Specific embodiment
The various exemplary embodiments of the utility model are described in detail now with reference to attached drawing.It should also be noted that unless another
It illustrates outside, the component and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments is unlimited
The scope of the utility model processed.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to this is practical
Novel and its application or any restrictions used.
Technology and equipment known to person of ordinary skill in the relevant may be not discussed in detail, but in appropriate situation
Under, the technology and equipment should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
The utility model provides a kind of sounding device, which includes at least shell 1 and acoustical generator monomer 2.Institute
Stating has accommodating chamber in shell 1, be formed with side on the side wall of the accommodating chamber and go out acoustic aperture 11, the side goes out acoustic aperture 11 for the appearance
Chamber of receiving is in communication with the outside.As shown in Figure 1, acoustical generator monomer 2 is mounted in shell 1, the accommodating chamber is divided into the preceding operatic tunes
101 and the rear operatic tunes 102, the top of acoustical generator monomer 2 is corresponding with the roof of the shell 1, constitutes the preceding sound between the two
Chamber 101.The preceding operatic tunes 101 goes out acoustic aperture 11 with the side and is connected to, and the sound that the vibration of acoustical generator monomer 2 generates can be from the preceding operatic tunes
101, which go out acoustic aperture 11 through the side, reaches the external world.The vibration of acoustical generator monomer 2 also will drive the flowing of the air in the preceding operatic tunes 101, lead to
Cross the side go out acoustic aperture 11 with the external world occur air-flow exchange.The roof of the shell 1 has the first horizontal planar portions 13.
As shown in Figure 1, the top of the acoustical generator monomer 2 by nearside speak hole 11 side edge and described first
The distance between planar portions 13, greater than the edge for the side that the separate side at the top of acoustical generator monomer 2 goes out acoustic aperture 11 and described the
The distance between one planar portions 13.In this way, go out the position of acoustic aperture 11 from most inner side to the side of the preceding operatic tunes 101, the entire preceding sound
Chamber 101 is in the shape being gradually expanded.Before this design method makes the operatic tunes by nearside speak hole position with bigger space,
It is flowed into and out for air.In diaphragm oscillations and then promotion air flowing, scheme provided by the utility model makes in throughput
In identical situation, the cross-sectional area flowed through for air is bigger, to reduce the flow velocity of air.Acoustic aperture is gone out by side in air
When flow velocity relative reduction, can effectively weaken air-flow sound, guarantee the acoustical behavior of sounding device.Further, it is incited somebody to action by this
The preceding operatic tunes goes out the design that acoustic aperture side is gradually expanded to side, additionally it is possible to increase the high-frequency cut-off frequency Fh of sounding device, increase is raised
The overall loudness of sound device.
Optionally, as shown in Figure 1, the bottom of the acoustical generator monomer 2 is corresponding with the bottom wall of the shell 1.The bottom
Wall has the second planar portions 14 for being parallel to the first planar portions 13.The acoustical generator monomer 2 goes out the one of acoustic aperture far from the side
The distance between side edge and second planar portions 14 go out the one of acoustic aperture close to the side greater than 2 bottom of acoustical generator monomer
The distance between side edge and the second planar portions 14.By this design method, the shell tool is well-regulated, mutually flat up and down
Capable the first planar portions and the second planar portions.
Optionally, as shown in Figure 1, 2, speaking by nearside for the acoustical generator monomer 2 the one of hole is laterally away from the shell 1
Roof direction inclination, the plummer forms and gradually expanded by the side that the laterally closer side for going out acoustic aperture far from side goes out acoustic aperture
Big bell-mouth structure of air.
By above-mentioned set-up mode, acoustical generator monomer is integral inclined to be set in shell, makes the preceding operatic tunes by being obliquely installed
Go out acoustic aperture towards side to be gradually expanded, be more advantageous to sound and go out in acoustic aperture from side and smoothly spread out of, improves acoustical behavior.
The utility model does not limit the shape of acoustical generator monomer strictly, and a kind of optional embodiment is by sounding
Device monolithic design is at cuboid-type.The structure for being configured to the acoustical generator monomer of carrying cuboid-type in the housing is more convenient,
Moulding process is relatively easy.
Optionally, the sounding device monomer can also include vibration component.Vibration component includes at least vibrating diaphragm 21 and sound
Circle, at least part edge of the vibrating diaphragm 21 is fixed on the shell 1.Voice coil is then connected to the rear surface of vibrating diaphragm
On, the rear surface of vibrating diaphragm is towards the operatic tunes 102 after described.
The sounding device can also include magnetic circuit system, as shown in Figure 1.The magnetic circuit system is arranged in the accommodating chamber
In.The magnetic circuit system is located at the rear surface side of vibrating diaphragm 21, i.e., the described magnetic circuit system occupies a part of sky of the rear operatic tunes 102
Between.Magnetic gap is formed in the magnetic circuit system.The voice coil is suspended from the magnetic gap.Sound letter can be passed through in voice coil
Number, magnetic field is then formed in the magnetic gap.Under electromagnetic action between voice coil and magnetic circuit system, voice coil can generate vibration
It is dynamic, and then drive 21 vibration sounding of vibrating diaphragm.
Optionally, as shown in Figure 1, the magnetic circuit system is arranged in the form of the roof relative to shell 1 is inclined described
In accommodating chamber.Since the vibrating diaphragm 21 favours the roof of the preceding operatic tunes 101, and the voice coil needs being connected on vibrating diaphragm 21 are set
It is placed in the magnetic gap of magnetic circuit system.The utility model provides preferred improvement project, and the magnetic circuit system is also tilted and is set
It sets in accommodating chamber.The inclined direction of magnetic circuit system and the inclined direction of vibrating diaphragm are consistent, and the tilt angle of the two is it is also preferred that consistent.
By this design method, on the one hand enables to vibration vibration of membrane more stable, be less prone to other influence acoustics such as polarization
The case where energy；On the other hand, it also can reduce the risk that voice coil and magnetic circuit system collide, the structure for improving sounding device can
By property.
Optionally, the shell includes upper casing and lower casing, and upper casing and lower casing fasten to form accommodating chamber.The side goes out acoustic aperture then
It is provided on the upper casing, the roof of above-mentioned shell also has the upper casing to be formed.It is formed between the acoustical generator monomer and upper casing
The preceding operatic tunes.
Plummer 12 is formed on the upper casing, as shown in Fig. 2, the edge part of the acoustical generator monomer 2 be fixed on it is described
On plummer 12, plummer 12 is used to provide the effect of support, fixation for acoustical generator monomer 2.The table top of the plummer 12 is
Inclined surface, the table top favour first planar portions 13.The table top from by nearside speak hole 11 to speaking far from side
The direction in hole 11 is gradually tilted to the direction of the roof far from the shell 1.The supporting table can provide for acoustical generator monomer
Reliably, stable supporting role can make acoustical generator monomer itself with inclined attitude stabilization by inclined shore platform itself
It is set in shell.The utility model is not intended to limit must be using plummer so that acoustical generator monomer is obliquely installed, in other realities
It applies in mode, the supporting condition being obliquely installed can also be provided acoustical generator monomer using structures such as hooks, the utility model is not
This is limited.
Still optionally further, acoustical generator monomer 2 can with 12 bonding connection of supporting table, to strengthen the side of acoustical generator monomer 2
The reliability that edge is fixedly connected with shell 1.The supporting table 12 at least goes out acoustic aperture 11 1 far from side for limiting acoustical generator monomer 2
Height of the edge of side in accommodating chamber, to guarantee that there are enough skies between the vibrating diaphragm 21 of this side and the roof of shell 1
Between for vibrating diaphragm 21 vibrate.By designing the plummer, it is also possible that vibrating diaphragm is easier to position in assembly.Further,
The other components or magnetic circuit system of the vibrational system can also be realized indirectly by the plummer and be positioned.
In a kind of optional embodiment, as shown in Figure 1, the plummer 12 is in the side for going out acoustic aperture close to the side
With notch.That is, upper casing is formed without the supporting table in the position for going out acoustic aperture close to the side, the supporting table is only formed
Do not going out the adjacent position of acoustic aperture with side.For example, acoustical generator monomer 2 be cuboid-type structure, then plummer 12 surround have pair
The semi-open ring structure for answering three edges of cuboid-type acoustical generator monomer 2, closes on side in acoustical generator monomer 2 and goes out acoustic aperture
Side does not form plummer 12.The advantages of this design method is, speaks the side in hole by nearside, reducing to the greatest extent may harm
Hinder the structure of air-flow, sound circulation, so that air-flow and sound be enable smoothly to flow out from the inclined preceding operatic tunes, reduces and occur
The risk of the problems such as air turbulence, air-flow sound.
In another optional embodiment, as shown in Fig. 2, the plummer 12 is that there are four the ring junctions of edge for tool
The four edges edge of structure, 2 top of acoustical generator monomer is each attached on the plummer 12.In this embodiment, it carries
Platform can provide more firm, reliable support to acoustical generator monomer.On the other hand, four Bian Junke at the top of acoustical generator monomer with
It is formed a fixed connection by way of coating marine glue with the plummer.In this way, between the surrounding and upper casing of acoustical generator monomer
Sealing is all formd, waterproof performance is significantly improved.
For tilt angle of the vibrating diaphragm in accommodating chamber, the utility model gives optional angular range.The sounding
The top of device monomer is to be less than or equal to 45 degree greater than 0 degree relative to the angular range of first planar portions.The angle is set
It counts into and is less than or equal to 45 degree, be on the one hand that the thickness for avoiding acoustical generator monomer is significantly increased, in turn result in and be unable to satisfy electricity
Thickness requirement of the sub- equipment to sounding device.Further aspect is that reducing the difficulty of processing of the shell, and reduce sounding dress
The assembly difficulty set.
Preferably, above-mentioned angle is greater than or equal to 1 degree.For example, above-mentioned angle is in 5 degree.If above-mentioned angle is too small, before
The technical issues of sectional area for air circulation of the operatic tunes, which is unable to get, to be effectively increased, air velocity and air-flow sound is unable to get
It is effectively relieved.Above-mentioned angle is not 0 degree, but it is relatively small when, there are air-flow get muddled so that influence sounding device sound
Learn the risk of performance.It is preferred that above-mentioned angle can be disorderly to reduce air-flow appearance more than or equal to 1 degree, preferably 5 degree
Random risk.Further, the influence that the thickness of sounding device entirety receives is less, it might even be possible to not have to change original thickness
Design.
In addition to it is above-mentioned vibrating diaphragm is designed to the roof relative to the preceding operatic tunes, the inclined embodiment of accommodating chamber other than, this reality
The roof of the preceding operatic tunes can also be obliquely installed with novel, to obtain above structure feature, or preferably reach reduction sky
The effect of gas velocity.For example, the vibrating diaphragm itself can be arranged relative to shell, accommodating chamber with inclined posture, and it is described
The roof of the preceding operatic tunes then goes out acoustic aperture to the direction for going out acoustic aperture close to the side, gradually to far from the vibration along from far from the side
The direction of film extends.Available vibrating diaphragm same in this way speak the edge in hole by nearside and separate side goes out the edge of acoustic aperture away from preceding
The roof of the operatic tunes apart from different technical characteristics.Alternatively, the technological means that vibrating diaphragm itself can also be obliquely installed and the preceding operatic tunes
The technical characterstic that is obliquely installed of roof combine, apply in the same embodiment.Pass through this design method
It can achieve the utility model technical effect of being obtained.Further, by combining two kinds of technological means, according to actual needs
The tilt angle for designing vibrating diaphragm and roof can also preferably realize the technical effect for reducing air velocity, weakening air-flow sound.
The utility model additionally provides a kind of mobile terminal, before the mobile terminal includes front panel, rear panel and connection
The frame of panel and rear panel further includes the above-mentioned sounding device being installed in mobile terminal.First planar portions with it is described
Front panel and rear panel are parallel.The side goes out acoustic aperture can be towards the frame.
Although being described in detail by some specific embodiments of the example to the utility model, this field
It is to be understood by the skilled artisans that above example merely to be illustrated, rather than in order to limit the scope of the utility model.This
Field it is to be understood by the skilled artisans that can not depart from the scope of the utility model and spirit in the case where, to above embodiments
It modifies.The scope of the utility model is defined by the following claims.
Claims (11)
1. a kind of sounding device characterized by comprising
Shell is formed with accommodating chamber in the shell, and the shell is formed with side on the side wall of the accommodating chamber and goes out acoustic aperture, institute
It states side and goes out acoustic aperture and the accommodating chamber is in communication with the outside；
Acoustical generator monomer, the acoustical generator monomer are installed in the shell and the accommodating chamber are divided into the preceding operatic tunes and rear sound
Chamber, the preceding operatic tunes go out acoustic aperture with the side and are connected to, the roof and the two of the top corresponding housing of the acoustical generator monomer it
Between formed before the operatic tunes, the roof have the first horizontal planar portions；
The one side edge and the distance between first planar portions for going out acoustic aperture close to the side at the top of the acoustical generator monomer,
Greater than the one side edge and the distance between first planar portions for going out acoustic aperture at the top of the acoustical generator monomer far from the side.
2. sounding device according to claim 1, which is characterized in that the bottom of acoustical generator monomer bottom corresponding housing
Wall, the bottom wall, which has, is parallel to the second planar portions of first planar portions, acoustical generator monomer bottom far from described
Side goes out the one side edge and the distance between second planar portions of acoustic aperture, greater than acoustical generator monomer bottom close to described
Side goes out the one side edge and the distance between second planar portions of acoustic aperture.
3. sounding device according to claim 1, which is characterized in that the acoustical generator monomer goes out acoustic aperture close to the side
A roof direction inclination for being laterally away from the shell, the preceding operatic tunes is by going out a laterally closer institute of acoustic aperture far from the side
It states side and goes out the bell-mouth structure of air that the side formation of acoustic aperture is gradually expanded.
4. sounding device according to claim 1, which is characterized in that the acoustical generator monomer is cuboid-type.
5. sounding device according to claim 2, which is characterized in that the acoustical generator monomer includes:
Vibration component, the vibration component include vibrating diaphragm and voice coil, the voice coil be connected to the vibrating diaphragm towards sound after described
In the rear surface of chamber；
Magnetic circuit system is formed with magnetic gap in the magnetic circuit system, and the voice coil is suspended from the magnetic gap, the magnetic circuit system
It is inclined in the accommodating chamber.
6. sounding device according to claim 1, which is characterized in that the shell includes upper casing, and the side goes out acoustic aperture and opens
On the upper casing, the roof is located on the upper casing, the operatic tunes before being formed between the acoustical generator monomer and the upper casing；
Plummer is equipped on the upper casing, the edge part of the acoustical generator monomer is fixed on the plummer, the carrying
The table top of platform is inclined surface, and the table top of the plummer goes out the one of the acoustic aperture roof for being laterally away from the shell from close to the side
Direction inclination.
7. sounding device according to claim 6, which is characterized in that the plummer is going out the one of acoustic aperture close to the side
Side has a notch, and the side goes out acoustic aperture with lower hole wall, the acoustical generator monomer by nearside speak hole side side wall surface and institute
Lower hole wall is stated to abut.
8. sounding device according to claim 6, which is characterized in that the plummer is that there are four the ring junctions of edge for tool
Structure, four sides at the top of the acoustical generator monomer are all fixed on the plummer.
9. according to claim 1-8 it is one of any described in sounding device, which is characterized in that at the top of the acoustical generator monomer and institute
The angle for stating the first planar portions is greater than 0 degree and is less than or equal to 45 degree.
10. sounding device according to claim 9, which is characterized in that flat with described first at the top of the acoustical generator monomer
The angle of face is greater than or equal to 1 degree, is less than or equal to 5 degree.
11. a kind of mobile terminal, the mobile terminal includes the frame of front panel, rear panel and connection front panel and rear panel,
It is characterised in that it includes it is installed on the sounding device as described in claims 1 to 10 is any in the mobile terminal, described
One planar portions are parallel with the front panel and the rear panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821896136.5U CN208940223U (en) | 2018-11-15 | 2018-11-15 | Sounding device and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821896136.5U CN208940223U (en) | 2018-11-15 | 2018-11-15 | Sounding device and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208940223U true CN208940223U (en) | 2019-06-04 |
Family
ID=66727645
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821896136.5U Active CN208940223U (en) | 2018-11-15 | 2018-11-15 | Sounding device and mobile terminal |
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| CN (1) | CN208940223U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110933563A (en) * | 2019-11-22 | 2020-03-27 | 歌尔股份有限公司 | Sound generating device module and electronic product |
| CN111818420A (en) * | 2019-09-17 | 2020-10-23 | 华为技术有限公司 | Loudspeaker and terminal |
| CN113099367A (en) * | 2020-01-08 | 2021-07-09 | 华为技术有限公司 | Loudspeaker, loudspeaker module and electronic equipment |
-
2018
- 2018-11-15 CN CN201821896136.5U patent/CN208940223U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111818420A (en) * | 2019-09-17 | 2020-10-23 | 华为技术有限公司 | Loudspeaker and terminal |
| WO2021052243A1 (en) * | 2019-09-17 | 2021-03-25 | 华为技术有限公司 | Speaker and terminal |
| US20220337942A1 (en) * | 2019-09-17 | 2022-10-20 | Huawei Technologies Co., Ltd. | Speaker and Terminal |
| JP2022548287A (en) * | 2019-09-17 | 2022-11-17 | 華為技術有限公司 | speaker and terminal |
| CN111818420B (en) * | 2019-09-17 | 2023-04-07 | 华为技术有限公司 | Loudspeaker and terminal |
| JP7412541B2 (en) | 2019-09-17 | 2024-01-12 | 華為技術有限公司 | Speakers and terminals |
| CN110933563A (en) * | 2019-11-22 | 2020-03-27 | 歌尔股份有限公司 | Sound generating device module and electronic product |
| CN110933563B (en) * | 2019-11-22 | 2021-02-19 | 歌尔股份有限公司 | Sound generating device module and electronic product |
| CN113099367A (en) * | 2020-01-08 | 2021-07-09 | 华为技术有限公司 | Loudspeaker, loudspeaker module and electronic equipment |
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