CN207399498U - Electroacoustic device and mobile terminal - Google Patents
Electroacoustic device and mobile terminal Download PDFInfo
- Publication number
- CN207399498U CN207399498U CN201721155370.8U CN201721155370U CN207399498U CN 207399498 U CN207399498 U CN 207399498U CN 201721155370 U CN201721155370 U CN 201721155370U CN 207399498 U CN207399498 U CN 207399498U
- Authority
- CN
- China
- Prior art keywords
- frame
- sound
- electroacoustic device
- leak holes
- vibrating diaphragm
- 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.)
- Expired - Fee Related
Links
Landscapes
- Telephone Set Structure (AREA)
Abstract
The utility model discloses a kind of electroacoustic device and mobile terminals, the electroacoustic device includes box body, frame, vibrating diaphragm, drive component and sound-absorbing material, the box body has sound chamber, the frame is fixed on the sound intracavitary, the side of the frame is equipped with the leak holes for penetrating through the sound chamber, the vibrating diaphragm is fixed on the frame, the driving component is contained in the frame, drive the diaphragm oscillations, the sound-absorbing material is contained in the sound intracavitary and outside the frame, to absorb the sound wave sent via the leak holes outside the frame.Sound-absorbing material can be distributed in the side of frame, and sound-absorbing material is avoided to be stacked in the frame, so as to reduce the electroacoustic device thickness, improve user experience.
Description
Technical field
The utility model is related to electronic device field more particularly to a kind of electroacoustic devices and mobile terminal.
Background technology
The electroacoustic component of mobile phone is equipped with through hole in vibrating diaphragm relative position at present, and opposite with vibrating diaphragm on the outside of electroacoustic component
Direction on stack sound-absorbing structure, sound-absorbing structure via through holes absorb the acoustic wave segment that vibrating diaphragm is sent, to promote the sound of electroacoustic component
Matter.However, under such structure, electroacoustic component is stacked with sound-absorbing structure, causes the integral thickness of mobile phone to increase, and reduces user's body
It tests.
Utility model content
The purpose of this utility model is to provide a kind of electroacoustic devices and mobile terminal for improving user experience.
In order to solve the above-mentioned technical problem, the utility model provides a kind of electroacoustic device, wherein, the electroacoustic device bag
Box body, frame, vibrating diaphragm, drive component and sound-absorbing material are included, the box body has sound chamber, and the frame is fixed on the sound chamber
Interior, the side of the frame is equipped with the leak holes for penetrating through the sound chamber, and the vibrating diaphragm is fixed on the frame, the driving component
It is contained in the frame, drives the diaphragm oscillations, the sound-absorbing material is contained in the sound intracavitary and positioned at the frame
Outside, to absorb the sound wave sent via the leak holes outside the frame.
The utility model also provides a kind of mobile terminal, wherein, the mobile terminal includes above-mentioned electroacoustic device.
Electroacoustic device and mobile terminal provided by the utility model set leak holes by the side of the frame, described
Leak holes discharge the host cavity inside points sound wave to outside electroacoustic component so that the in vivo sound-absorbing material of box is in the frame
Side absorbs acoustic wave segment through the leak holes, i.e. sound-absorbing material can be distributed in the side of frame, sound-absorbing material is avoided to stack
In the frame, so as to reduce the electroacoustic device thickness, user experience is improved.
Description of the drawings
In order to illustrate more clearly of the technical solution of the utility model embodiment, will make below to required in embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the utility model, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the schematic cross-section for the electroacoustic component that the utility model embodiment provides；
Fig. 2 is another schematic cross-section for the electroacoustic component that the utility model embodiment provides；
Fig. 3 is the schematic cross-section for the electroacoustic component that another embodiment of the utility model provides；
Fig. 4 is another schematic cross-section for the electroacoustic component that the utility model embodiment provides；
Fig. 5 is another schematic cross-section for the electroacoustic component that the utility model embodiment provides；
Fig. 6 is another schematic cross-section for the electroacoustic component that the utility model embodiment provides；
Fig. 7 is the schematic cross-section for the electroacoustic component that another embodiment of the utility model provides；
Fig. 8 is the schematic cross-section for the electroacoustic component that another embodiment of the utility model provides；
Fig. 9 is the schematic cross-section for the electroacoustic component that another embodiment of the utility model provides；
Figure 10 is the schematic cross-section for the electroacoustic device that the utility model embodiment provides；
Figure 11 is the schematic cross-section for the electroacoustic device that another embodiment of the utility model provides；
Figure 12 is another schematic cross-section for the electroacoustic device that the utility model embodiment provides；
Figure 13 is another schematic cross-section for the electroacoustic device that the utility model embodiment provides；
Figure 14 is another schematic cross-section for the electroacoustic device that the utility model embodiment provides；
Figure 15 is the rearview for the mobile terminal that the utility model embodiment provides；
Figure 16 is the decomposition diagram for the mobile terminal that the utility model embodiment provides.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of making the creative labor
All other embodiments obtained shall fall within the protection scope of the present invention.
In the description of the utility model embodiment, it is to be understood that the orientation of the instructions such as term " thickness " or position are closed
Be for based on orientation shown in the drawings or position relationship, be for only for ease of description the utility model and simplify description rather than
Imply or indicate that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore cannot
It is interpreted as the limitation to the utility model.
Referring to Fig. 1, the utility model provides a kind of electroacoustic component 100, the electroacoustic component 100 includes frame 10, shakes
Film 20 and drive component 30.With host cavity 11, the host cavity 11 has the frame 10 at the top of the frame 10
Mounting hole 12.The frame 10 is equipped with the leak holes 13 for penetrating through the host cavity 11 in side.The vibrating diaphragm 20 is fixed on described
The top of frame 10, and cover the mounting hole 12.The driving component 30 is contained in the host cavity 11, is shaken described in driving
Film 20 shakes, and the leak holes 13 leak to the 11 inside points sound wave of host cavity outside the host cavity 11.It is appreciated that
It is that the electroacoustic component 100 is applied to mobile terminal, which can be mobile phone, tablet computer or laptop etc..
The mobile terminal in 10 side of the frame position opposite with the leak holes 13 by setting sound-absorbing structure so that sound-absorbing
Structure absorbs the acoustic wave segment in the host cavity 11 through the leak holes 13, to improve the tonequality of the electroacoustic component 100.
Leak holes 13 are set by the side of the frame 10, the leak holes 13 are by the 11 inside points sound wave of host cavity
Outside release to electroacoustic component 100 so that external sound-absorbing structure is inhaled in the side of the electroacoustic component 100 through the leak holes 13
Receiving portions sound wave, i.e., described electroacoustic component 100 is on the direction opposite with vibrating diaphragm 20 without providing using space, so as to save
The electroacoustic component 100 can reduce the electroacoustic component 100 and sound-absorbing knot with using space in 20 relative direction of vibrating diaphragm
The integral thickness of structure, improves user experience.
In present embodiment, the frame 10 includes the bottom 15 that top 14 and relatively described top 14 are set.The peace
Dress hole 12 is opened in 14 end face of top.The top 14 is fixedly connected with the periphery of the vibrating diaphragm 20.14 end face of top
The periphery of the vibrating diaphragm 20 can be bonded.The leak holes 13 are between the top 14 and the bottom 15.The leakage
Hole 13 can be round hole or bar hole.The frame 10 can be plastic parts or metalwork.It can manage
Solution, the leak holes 13 are mutually circulated by 11 interior air-flow of host cavity and the 11 outer air-flow of host cavity so that institute
The acoustic wave energy stated in host cavity 11 is transferred to 11 outside of host cavity through the leakage 13, realizes the leak holes 13 by institute
It states 11 internal noise of host cavity and leaks to 11 outside of host cavity.The direction that the leak holes 13 reveal sound wave substantially shakes with described
The direction that film 20 shakes sounding is vertical, i.e., described leak holes 13 reveal the substantially parallel vibrating diaphragm 20 in direction of sound wave so that outer
Portion's sound-absorbing structure can be in the direction of the parallel vibrating diaphragm 20 and the electroacoustic component 100 side by side.
In present embodiment, the vibrating diaphragm 20 is equipped with fold 21 between periphery and geometric center.The fold 21 is along institute
State the circumferentially extending of vibrating diaphragm 20.The fold 21 reduces the tension of vibrating diaphragm 20, so that the vibrating diaphragm 20 is in geometry
The region of the heart is more prone to deformation vibration.The driving component 30 applies the drive along 20 normal direction of vibrating diaphragm to the vibrating diaphragm 20
Power drives the vibrating diaphragm 20 to generate deformation.I.e. described vibrating diaphragm 20 vibrates back and forth in substantially geometric center region, to send sound
Ripple.The sound wave that the vibrating diaphragm 20 is sent is propagated outside through the mounting hole 12 towards the host cavity 11, so that user receives sound wave.Institute
Main speak component of the mounting hole 12 as the electroacoustic component 100 is stated, and the leak holes 13 are only to reveal the receipts
The sound wave that 11 inside points of cavity volume need not be received by user.The sound wave that i.e. described vibrating diaphragm 20 is sent can also propagate to the collecting
In chamber 11, the sound wave that 11 inside points of host cavity need not be easily accepted by a user is leaked to the host cavity 11 by the leakage 13
Outside, and by the sound-absorbing structure outside the host cavity 11 acoustic wave segment is sponged.In 20 vibration processes of vibrating diaphragm, make
It obtains 11 internal volume of host cavity to change, to drive 11 interior air-flow of host cavity through the leak holes 13 and the host cavity 11
Outer air-flow mutually circulates.The material of the vibrating diaphragm 20 can be papery, Fiber Materials, metal material, wool material, silk material
Deng.
In present embodiment, the driving component 30 includes being fixed on the first actuator 31 of the vibrating diaphragm 20 and be fixed on
Second actuator 32 of the frame 10.First actuator 31 can relatively described second actuator 32 vibrate, to drive
It states the vibration of vibrating diaphragm 20 and sends sound wave, and the 11 inside points sound wave of host cavity is caused to leak to the receipts by the leak holes 13
Outside cavity volume 11.First actuator 31 is slided along relatively described second actuator 32 in direction of substantially parallel 20 normal direction of vibrating diaphragm
It is dynamic.First actuator 31 can relatively described second actuator 32 reciprocatingly slide, so as to drive substantially leaning on for the vibrating diaphragm 20
The region of nearly geometric center is of reciprocating vibration along normal direction.The vibrating diaphragm 20 drives when substantially adjacent to the domain oscillation of geometric center
Air-flow flows, so as to generate sound wave.The sound wave that the vibrating diaphragm 20 is sent largely propagates to user outwardly, without by user
The acoustic wave segment of reception leaks to the outside of the frame 10 through the leak holes 13, so as to by 10 outside sound-absorbing of institute's frame
Structure absorbs.Due to the normal direction of the leakage substantially vertical vibrating diaphragm 20 in sound wave direction of the leak holes 13, i.e., described electroacoustic group
Part 100 need not set sound-absorbing structure on the direction of substantially parallel 20 normal direction of vibrating diaphragm, so as to 14 He of top of frame 10
Bottom 15 can be resisted against on exterior part respectively, so that the electroacoustic component 100 can consolidate installation, and saved and made
Use space.
Further, referring to Fig. 2, first actuator 31 is coil.Second actuator 32 is magnet.It is described
After first actuator 31 receives current signal, magnetic field is generated.First actuator 31 is according to the variation of current signal, so as to produce
Raw magnetic direction also generates variation.And second actuator 32 be permanent magnet, the magnetic direction of second actuator 32
Variation will not be generated.First actuator 31 is under the variation of current signal by the magnetic field phase interaction of second actuator 32
With can be slided closer or far from second actuator 32, and then the vibrating diaphragm 20 is driven to vibrate.Due to the described first driving
Part 31 slides up and down in the spacing 323, can effectively reduce the thickness of the electroacoustic component 100.
In another embodiment, referring to Fig. 3, first actuator 31 is magnet.Second actuator 32 is line
Circle.First actuator 31 is annular in shape.First actuator 31 is circumferentially fixedly connected with the fold 21.Described second drives
Moving part 32 is circumferentially fixed on the inner circumferential side wall 12.
Further, referring to Fig. 4, the frame 10 includes the side plate 16 for being fixedly connected with 20 periphery of vibrating diaphragm and fixes
The bottom plate 17 that in the side plate 16 and relatively described vibrating diaphragm 20 is set.The receipts are formed between the side plate 16 and the bottom plate 17
Cavity volume 11.The edge that the side plate 16 connects the vibrating diaphragm 20 forms the top 14 of the frame 10, and the bottom plate 17 forms institute
State the bottom 15 of frame 10.The side plate 16 connects and encloses the mounting hole 12 on the inside of the edge of the vibrating diaphragm vibrating diaphragm 20.Institute
It states leak holes 13 and is arranged at the side plate 16.
In present embodiment, first actuator 31 and second actuator 32 are respectively positioned on the host cavity 50.Institute
It states the second actuator 32 and is fixedly connected with the bottom plate 17 towards 20 one side of vibrating diaphragm.Utilize the relatively described vibrating diaphragm of the bottom plate 17
20 are set, and the sound wave that the bottom plate 17 sends the vibrating diaphragm 20 reflects so that the 11 inside points sound wave of host cavity can
To leak to 10 outside of frame through the leak holes 13.And first actuator 31 and second actuator 32
In in the host cavity 11, the inner space of the host cavity 11 is made full use of, effectively reduces 100 thickness of electroacoustic component.
In one embodiment, as shown in figure 5, second actuator 32 contacts at 16 inside of the side plate, described the
Two actuators 32 are opened up wears sound hole 33 with what the leak holes 13 communicated.The sound wave that the vibrating diaphragm 20 is sent wears sound described in passing through successively
Hole 33 and the leak holes 13 leak to 10 outside of frame.Sound hole 33 is worn described in the warp of leak holes 13 to drive with described second
The space of 32 inside of moving part communicates.The one end of second actuator 32 away from the bottom plate 17 need not provide Acoustic Wave Propagation and lead to
Road, i.e., described second actuator 32 can be close proximity to the vibrating diaphragms 20 away from described 17 one end of bottom plate so that the electroacoustic group
100 thickness of part can be sufficiently small.The internal diameter for wearing sound hole 33 is more than the outer diameter of the leak holes 13, facilitates the host cavity 11
Inside points sound wave wears sound hole 33 described in passing through.
Further, in one embodiment, as shown in fig. 6, the leak holes 13 are through hole.The leak holes 13 run through
The side plate 16, the geometric centre axes of the leak holes 13 are located at the side plate 16 at the vibrating diaphragm 20.The leakage
The distance of hole 13 to the vibrating diaphragm 20 is less than the leak holes 13 to the distance of the bottom plate 17, and the vibrating diaphragm 20 is facilitated to propagate to
The acoustic wave segment of the host cavity 11 quickly spreads out of 10 outside of frame through the leak holes 13.The quantity of the leak holes 13
To be multiple.Circumferentially equidistant arrangement of multiple leak holes 13 along the frame 10.Utilize multiple 13 leakage sound of leak holes
Ripple improves the flux of the leakage sound wave of the electroacoustic component 100, improves the acoustical quality of the electroacoustic component 100.
In another embodiment, as shown in fig. 7, the leak holes 13 are through hole.The leak holes 13 run through the side plate
16, the geometric centre axes of the leak holes 13 are located at the side plate 16 at the bottom plate 17.The leak holes 13 are to institute
The distance for stating vibrating diaphragm 20 is more than the leak holes 13 to the distance of the bottom plate 17.
In another embodiment, as shown in figure 8, the leak holes 13 are bar hole.The leak holes 13 are in the side plate
16 extending direction at the vibrating diaphragm 20 at the bottom plate 17 from extending.The leak holes 13 are in the side plate 16
Accounting increases so that 11 interior air-flow of host cavity increases the 10 outer circulating rate of frame, improves the leak holes 13 and lets out
Reveal the efficiency of sound wave.
In another embodiment, as shown in figure 9, the leak holes 13 are bar hole.The side plate 16 includes the first sub- side
Plate 161 and the second sub- side plate 162 being connected with the described first sub- side plate 161 in angle, the leak holes 13 extend laterally, simultaneously
Through the described first sub- side plate 161 and the second sub- side plate 162 so that 11 interior air-flow of host cavity to the frame 10 outside
Circulating rate increases, and improves the efficiency that the leak holes 13 reveal sound wave.
Referring to Fig. 10, the utility model also provides a kind of electroacoustic device 200, the electroacoustic device 200 includes the electricity
Sound component 100, the electroacoustic device 200 further include box body 40, and the box body 40 has sound chamber 41, and the electroacoustic component 100 is solid
Due in the sound chamber 41.
In present embodiment, the volume of the sound chamber 41 is more than the volume of the electroacoustic component 100.The electroacoustic component
The sound wave that 100 vibrating diaphragm 20 is sent leaks to the sound chamber 41 through the leak holes 13, so as to which the sound chamber 41 absorbs the receipts
The acoustic wave segment revealed in cavity volume 11 through the leak holes 13.
Further, the box body 40 includes the second cover board that the first cover board 42 and relatively described first cover board 42 are set
43 and the 3rd cover board 44 that is fixed between first cover board 42 and second cover board 43.The vibrating diaphragm 20 is resisted against
First cover board 42, the distance of the 3rd cover board 44 to the frame 10 be more than the bottom plate 63 to the frame 10 away from
From.
In present embodiment, the bottom plate 17 contacts at second cover board 43.I.e. described vibrating diaphragm 20 is to the bottom plate 17
Distance be substantially equal to first cover board 42 to the distance of second cover board 43 so that the thickness of the box body 40 with it is described
The thickness of electroacoustic component 100 is roughly the same, realizes that the thickness of the electroacoustic device 200 is sufficiently small.First cover board 42 is equipped with
Transaudient portion 421, the transaudient portion 421 substantially cover the frame 20.The vibrating diaphragm 20 is towards the transaudient portion 421.As one
Kind embodiment, the transaudient portion 421 can be through hole.The pronunciation mouth 12 is docked with the transaudient portion 421.The vibrating diaphragm 20
Towards the Acoustic Wave Propagation sent outside the transaudient portion 421 to user.The frame 10 is in the outside of the mounting hole 12 and the box
Body 40 seals so that the sound wave that the vibrating diaphragm 20 is sent through the mounting hole 12 will not be leaked in the sound chamber 41.Described
Three cover boards 44 are to enough sound wave spaces are set between the side plate 16, between the 3rd cover board 44 and the side plate 16
Enough sound waves are absorbed, and acoustic wave energy is consumed so that the sound wave that the host cavity 11 is revealed through the leak holes 13 exists
The sound chamber 41 eliminates, and improves the tonequality of the electroacoustic device 200.
In another embodiment, 1 is please referred to Fig.1, there are gap h, institutes between second cover board 42 for the bottom plate 17
State the 3rd cover board 44 between the side plate 16 exist distance H.The gap h is less than the distance H, so that the box body
100 thickness can be sufficiently small, and the leak holes 13 to absorption sound wave efficiency between the 3rd cover board 44 improves, and
There is also segment spaces between second cover board 43 and the bottom plate 17 to absorb sound wave, further improves the electroacoustic device
200 tonequality.
Further, 2 are please referred to Fig.1, the sound chamber 41 is outside the frame 10 filled with sound-absorbing material 45, the suction
Sound material 45 absorbs the sound wave revealed through the leak holes 13.
In present embodiment, the sound-absorbing material 45 absorbs the sound wave revealed from the leak holes 13.It is understood that
The leak holes 13 reveal 11 internal noise of host cavity so that the noise in the host cavity 11 is inhaled by the sound-absorbing material 45
It receives so that bass effect is presented in the sound that the electroacoustic device 200 is sent, and improves tonequality, adds user experience.
Further, 3 are please referred to Fig.1, the electroacoustic device 200 further includes the block piece 50 for covering the leak holes 13.
The block piece 50 isolates from the sound-absorbing material 45 outside the host cavity 11.The block piece 50 can be let out described in covering
Reveal hole 13 and be located at 16 inside of side plate positioned at 16 outside of side plate or the covering leak holes 13.Pass through institute
It states block piece 50 and covers the leak holes 13, the sound-absorbing material 45 is avoided to enter the host cavity 11, avoids influencing the electricity
100 sounding of sound component.The block piece 50 covers the leak holes 13 so that the sound-absorbing material 45 can be filled up completely in sound
Space of the chamber 41 outside the frame 10, without being contained in the sound again after being first packaged to the sound-absorbing material 45
In chamber 41, the tonequality of the electroacoustic device 200 had not only been improved, but also has reduced the production cost of the electroacoustic device 200.Certainly,
In other embodiments, the diameter of the leak holes 13 can also be set to be less than the diameter of the sound-absorbing material 45, so as to not
It needs to being covered using the block piece 50 to the leak holes 13.
In one embodiment, the block piece 50 is screen cloth.The block piece 50 fits in the outside of the side plate 16.
The cell inner diameter of the block piece 50 is less than the diameter of the sound-absorbing material 45.The block piece 50 is to passing through the leak holes 13
Sound wave do not stop so that the sound-absorbing material 45 absorb sound wave.And the block piece 50 can stop the sound absorption material
Material 45 enters in the host cavity 11.The block piece 50 is fixed on the leak holes 13 outside the opening of the side plate 16
Side, i.e., the edge of described block piece 50 can be fixed on the top 14 of the frame 10 and bottom 15 so that the leak holes 13
It is maximized in the accounting of the side plate 16, improves the sound wave flux that the leak holes 13 can be revealed, improve the electroacoustic
The tonequality of device 200.The block piece 50 can be coated on 20 side of frame, so that sound-absorbing material 45 can be coated on
20 side of frame, you can to the 20 Omnibearing absorbing sound wave of frame, to increase the sound-absorbing material 45 in the sound
Loading in chamber 41 improves the efficiency that the sound-absorbing material 45 absorbs sound wave.As a kind of embodiment, the block piece 50
The side plate 16 is fixed on through Shooting Technique.During the block piece 50 is fixed on the frame 10, institute is molded first
Block piece 50 is stated, is then positioned over using the block piece 50 as inserts in the molding die of the frame 10, the frame 10
It is molded through Shooting Technique, the 50 heated Shooting Technique of block piece is integrated with the frame 10 so that the block piece 50
With 10 stabilized structure of frame.Alternatively, the block piece 50 is plastic cement screen cloth.The block piece 50 and institute
Frame 10 is stated to be molded through nanometer Shooting Technique using double-color mold.The shaping mold cavity of the block piece 50 makes through nanometer technology,
So that 590 formed precision of block piece improves so that the block piece 50 can be molded multiple micropores, and stabilized structure.Institute
Stating block piece 50 can stop that the sound-absorbing material 45 enters in the frame 10, and the leak holes 13 is allowed to reveal sound wave extremely
In the sound chamber 41.
In another embodiment, as shown in figure 14, the block piece 50 is partition plate, and the block piece 50 includes and the side
The opposite baffle 51 of plate 16 and the connecting plate 52 being fixed between the baffle 51 and the side plate 16.The connecting plate 52 encloses
Around 13 outside of leak holes.There are spacing between the baffle 51 and the side plate 16, the leak holes 13 are in institute
It states communication space on the outside of the openend of side plate 16 to increase, the sound wave that the leak holes 13 are revealed is passing through the leak holes 13
Afterwards, propagating to the path of the sound-absorbing material 45 increases so that the sound-absorbing material 45 absorbs sound wave efficiency and improves, further
Increase the tonequality of the electroacoustic device 200.
5 and Figure 16 are please referred to Fig.1, the utility model also provides a kind of mobile terminal 300, and the mobile terminal 300 includes
Housing 60 and the mainboard 61 being fixed in the housing 60.The electroacoustic device 200 is fixed on the bottom of the housing 60.It is described
First actuator 31 of electroacoustic component 100 is electrically connected the mainboard 61, receives the current signal of the mainboard 61, and then can phase
Second actuator 32 is slided, and causes 100 sounding of electroacoustic component.It is understood that the mobile terminal 300
Can be mobile phone, tablet computer, laptop etc..The mobile terminal 300 further includes center 70, and the center 70 is fixed on
In the housing 60.The mainboard 61 and the electroacoustic device 200 are both secured on the center 70.Before the housing 60 includes
The back-cover 63 that lid 62 and the relatively described lid of protecgulum 62 close.The protecgulum 62 has glass cover-plate and display screen to form.The back-cover 63
For metal battery rear cover.The center 70 is fixed between the protecgulum 62 and the back-cover 63.The electroacoustic device 200 is fixed
In the bottom of the center 70.The bottom of the center 70 is the opposite one end of the receiver of the mobile terminal 300.The electricity
3rd cover board 44 of acoustic device 300 is fixed on the center 70.First cover board 42 is towards the back-cover 63.I.e. described vibrating diaphragm
20 towards the back-cover 63.There are spacing between the vibrating diaphragm 20 and the back-cover 63.So that the vibrating diaphragm 20 is towards the collecting
The sound wave sent outside chamber 11 can pass between the back-cover 63 and first cover board 42 along the direction of the parallel back-cover 63
It broadcasts.The back-cover 63 is equipped with multiple loud-speaker openings 631 in bottom side.The vibrating diaphragm 20 is flat towards the sound wave edge that the back-cover 63 is sent
The direction of the row back-cover 63 is propagated at multiple loud-speaker openings 631, and propagates to use by multiple loud-speaker openings 631
Family.
Leak holes are set by the side of the frame, the leak holes discharge the host cavity inside points sound wave to electricity
Outside sound component so that external sound-absorbing structure absorbs acoustic wave segment, i.e. institute in the side of the electroacoustic component through the leak holes
Electroacoustic component is stated on the direction opposite with vibrating diaphragm without providing using space, so as to save the electroacoustic component with vibrating diaphragm
Space is used in relative direction, the integral thickness of the electroacoustic component and sound-absorbing structure can be reduced, improve user experience.
The above are the embodiments of the utility model embodiment, it is noted that for the ordinary skill people of the art
For member, on the premise of the utility model embodiment principle is not departed from, several improvements and modifications can also be made, these improvement
The scope of protection of the utility model is also considered as with retouching.
Claims (20)
1. a kind of electroacoustic device, which is characterized in that the electroacoustic device includes box body, frame, vibrating diaphragm, drive component and sound absorption material
Material, the box body have sound chamber, and the frame is fixed on the sound intracavitary, and the side of the frame, which is equipped with, penetrates through the sound chamber
Leak holes, the vibrating diaphragm are fixed on the frame, and the driving component is contained in the frame, drives the diaphragm oscillations,
The sound-absorbing material is contained in the sound intracavitary and outside the frame, and the frame is sent via the leak holes to absorb
Sound wave outside frame.
2. electroacoustic device according to claim 1, which is characterized in that the electroacoustic device, which further includes, covers the leak holes
Block piece, the block piece isolates from the sound-absorbing material outside the frame.
3. electroacoustic device according to claim 2, which is characterized in that the block piece is screen cloth, and the block piece is through note
Modeling technique is fixed on the side of the frame.
4. electroacoustic device according to claim 3, which is characterized in that the sound-absorbing material for sound absorption particle, the sound absorption
The diameter of particle is more than the cell inner diameter of the block piece.
5. electroacoustic device according to claim 3, which is characterized in that the block piece coats the side of the frame.
6. electroacoustic device according to claim 2, which is characterized in that the block piece is partition plate, and the block piece includes
The baffle opposite with the frame and the connecting plate being fixed between the baffle and the frame, the connecting plate are enclosed in institute
It states around on the outside of leak holes.
7. according to the electroacoustic device described in 6 any one of claim 1 ￣, which is characterized in that the sound-absorbing material is filled in institute
State sound intracavitary and the space outside the frame.
8. according to the electroacoustic device described in 6 any one of claim 1 ￣, which is characterized in that the frame includes side plate and bottom
Plate, the side plate are fixedly connected on the periphery of the vibrating diaphragm, and the bottom plate is fixedly connected with the side plate and relatively described vibrating diaphragm is set
It puts, the leak holes run through the side plate, and the driving component is fixed between the vibrating diaphragm and the bottom plate.
9. electroacoustic device according to claim 8, which is characterized in that the central axis of the leak holes is located at the side plate
At the vibrating diaphragm.
10. electroacoustic device according to claim 8, which is characterized in that the central axis of the leak holes is located at the side
Plate is at the bottom plate.
11. electroacoustic device according to claim 8, which is characterized in that the leak holes the side plate extending direction by
Extend at the vibrating diaphragm at the bottom plate.
12. electroacoustic device according to claim 8, which is characterized in that the leak holes are in the extending direction of the side plate
The parallel bottom plate.
13. according to the electroacoustic device described in 6 any one of claim 1 ￣, which is characterized in that the quantity in the leakage portion is more
It is a, circumferentially equidistant arrangement of multiple leakage portions along the frame.
14. according to the electroacoustic device described in 6 any one of claim 1 ￣, which is characterized in that the driving component includes first
Actuator and the second actuator, first actuator are fixed on the vibrating diaphragm, and second actuator is fixed on the frame,
First actuator can relatively described second actuator vibration.
15. electroacoustic device according to claim 14, which is characterized in that second actuator is equipped with and the leak holes
What is communicated wears sound hole.
16. electroacoustic device according to claim 15, which is characterized in that second actuator is contacted in the frame
Side wall.
17. according to the electroacoustic device described in 6 any one of claim 1 ￣, which is characterized in that the box body includes the first cover board
First cover board is set relatively the second cover board and be fixed between first cover board and second cover board the
Three cover boards form the sound chamber between first cover board, the second cover board and the 3rd cover board.
18. electroacoustic device according to claim 17, which is characterized in that first cover board is equipped with transaudient portion, described to shake
Film towards the transaudient portion, and through the transaudient portion outside the box body sounding.
19. electroacoustic device according to claim 17, which is characterized in that the distance of the 3rd cover board to the frame is big
In the distance of second cover board to the frame.
20. a kind of mobile terminal, which is characterized in that the mobile terminal includes the electricity described in 19 any one of claim 12 ￣
Acoustic device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721155370.8U CN207399498U (en) | 2017-09-08 | 2017-09-08 | Electroacoustic device and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721155370.8U CN207399498U (en) | 2017-09-08 | 2017-09-08 | Electroacoustic device and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207399498U true CN207399498U (en) | 2018-05-22 |
Family
ID=62416041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721155370.8U Expired - Fee Related CN207399498U (en) | 2017-09-08 | 2017-09-08 | Electroacoustic device and mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207399498U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107623886A (en) * | 2017-09-08 | 2018-01-23 | 广东欧珀移动通信有限公司 | Electroacoustic device and mobile terminal |
| US20220417649A1 (en) * | 2019-11-22 | 2022-12-29 | Goertek Inc. | Loudspeaker module and electronic apparatus |
-
2017
- 2017-09-08 CN CN201721155370.8U patent/CN207399498U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107623886A (en) * | 2017-09-08 | 2018-01-23 | 广东欧珀移动通信有限公司 | Electroacoustic device and mobile terminal |
| US20220417649A1 (en) * | 2019-11-22 | 2022-12-29 | Goertek Inc. | Loudspeaker module and electronic apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103747398B (en) | Loudspeaker module and electronic device comprising the loudspeaker module | |
| US10225646B2 (en) | Speaker box | |
| CN108430014B (en) | Loudspeaker enclosure | |
| KR101691362B1 (en) | Ultrathin loudspeaker module | |
| CN203574855U (en) | Loudspeaker module | |
| US10750274B2 (en) | Speaker box | |
| CN106851504A (en) | Electroacoustic component, electroacoustic device and mobile terminal | |
| WO2016176996A1 (en) | Loudspeaker module | |
| CN108462906A (en) | Loudspeaker enclosure | |
| CN108551635B (en) | Micro speaker module | |
| TWI689209B (en) | Speaker, loudspeaking device and mobile terminal | |
| CN107360516B (en) | Loudspeaker box | |
| CN207070324U (en) | Loudspeaker module and electronic equipment | |
| CN109788395A (en) | Loudspeaker enclosure | |
| CN110035354B (en) | Loudspeaker box | |
| CN108430017B (en) | Sound production device and electronic equipment | |
| CN207869334U (en) | A kind of encapsulating structure and loud speaker module of sound-absorbing particle | |
| CN207399498U (en) | Electroacoustic device and mobile terminal | |
| CN108566599B (en) | Sound production device and electronic equipment | |
| WO2020077776A1 (en) | Speaker module | |
| CN109495828A (en) | Loudspeaker enclosure | |
| CN107623886A (en) | Electroacoustic device and mobile terminal | |
| CN206559633U (en) | Electroacoustic component, electroacoustic device and mobile terminal | |
| CN107592598B (en) | Electroacoustic component, electroacoustic device and mobile terminal | |
| CN107623885A (en) | Electroacoustic component, electroacoustic device and mobile terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: 523860 No. 18 Wusha Haibin Road, Chang'an Town, Dongguan City, Guangdong Province Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180522 |