CN209283504U - A kind of loudspeaker mould group and electronic equipment - Google Patents
A kind of loudspeaker mould group and electronic equipment Download PDFInfo
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- CN209283504U CN209283504U CN201920178220.1U CN201920178220U CN209283504U CN 209283504 U CN209283504 U CN 209283504U CN 201920178220 U CN201920178220 U CN 201920178220U CN 209283504 U CN209283504 U CN 209283504U
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- sound
- mould group
- absorbing particle
- grid baffle
- loudspeaker
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Abstract
The utility model relates to a kind of loudspeaker mould group and electronic equipments.The loudspeaker mould group includes module shell and the loudspeaker monomer that is arranged in module shell inner cavity, and the space of module shell inner cavity is separated into the preceding operatic tunes and the rear operatic tunes by the loudspeaker monomer；Grid baffle is provided in the rear operatic tunes, the rear operatic tunes is separated into sound-absorbing particle chamber and airflow channel along direction of vibration by the grid baffle, the sound-absorbing particle is intracavitary to be filled with sound-absorbing particle, disengaging has vibratory flow in the airflow channel, the grid baffle is configured as: for stopping sound-absorbing particle to enter loudspeaker monomer, and passing through for vibratory flow enables vibratory flow to pass in and out sound-absorbing particle chamber.One technical effect of the utility model are as follows: the acoustical behavior of loudspeaker mould group can be improved；It also can be reduced the volume of the occupied rear operatic tunes of sound-absorbing particle accommodating chamber building, the utilization rate in operatic tunes space after raising, and increase the filling amount of sound-absorbing particle.
Description
Technical field
The utility model relates to electroacoustic switch technology fields, more specifically, the utility model relates to a kind of loudspeaker mould groups
And electronic equipment.
Background technique
In recent years, with the fast development of electroacoustic techniques, various electro-acoustic products make rapid progress.Loudspeaker mould group is as a kind of
The energy converter for converting electrical signals to voice signal is device indispensable in electro-acoustic product.Loudspeaker mould group is usual
Including module shell and the loudspeaker monomer being arranged in module shell, module shell inner cavity is separated into preceding sound by loudspeaker monomer
Chamber and the rear operatic tunes.Technical staff has found in the research to loudspeaker mould group acoustical behavior, by adding suction in the operatic tunes behind
The mode of sound cotton can improve the acoustical behavior (such as reduce the resonance frequency F0 of mould group, spread bandwidth etc.) of loudspeaker mould group.Study carefully
Its reason is: part sound energy can be absorbed in acoustical cotton, is equivalent to the volume of the operatic tunes after expanding loudspeaker mould group, so as to
Reach the resonance frequency F0 for reducing mould group, spread bandwidth and other effects.
Nowadays, people propose lightening requirement to electro-acoustic product, and loudspeaker mould group is also just required to be miniaturized accordingly,
The rear operatic tunes volume of loudspeaker mould group is constantly compressed, is reduced thus.Traditional acoustical cotton has been increasingly difficult to so that loudspeaker
The resonance frequency F0 of mould group achievees the effect that needed for product design, it is difficult to guarantee the middle low frequency sound quality of loudspeaker mould group.To understand
Certainly this problem, currently used means are by non-foamed porous material (such as active carbon, natural zeolite, reactive silica
Silicon, molecular sieve, MOFs or the mixture prepared according to particular types and proportion etc.) it is used as sound-absorbing material to be filled into rear sound
Chamber can make micro- using the microcosmic cellular structure of non-foamed porous material to the property of rear operatic tunes gas quick adsorption, desorption
The loudspeaker mould group interior resonance space of type generate it is virtual increase, can be effectively reduced loudspeaker mould group mould group resonance frequency F0,
It extends that low-frequency band is wide etc., can achieve the effect of optimization Microspeaker product acoustical behavior.
However, when non-foamed porous material is filled to the rear operatic tunes of loudspeaker mould group as sound-absorbing material, it will usually
Special filling area is designed in the rear operatic tunes, is also separated in filling area with loudspeaker monomer by screen cloth, to prevent from inhaling
Sound material enters loudspeaker monomer.And since accumulation of the sound-absorbing material in filling area can usually cause air-flow flowing to have some setbacks
Phenomenon causes sound-absorbing material that can not play preferable sound-absorbing effect so that air be made not contact with sound-absorbing material smoothly,
Go down to generate undesirable effect for a long time, such as the resonance frequency F0 of loudspeaker mould group can be made to increase.In addition, pacifying in the rear operatic tunes
When filling screen cloth, generally requires and just installed when module shell molding, and since the material is soft for screen cloth, by screen cloth
Each Bian Douyu module shell is fixedly connected, and the setting that just screen cloth can be made stable is in the rear operatic tunes.Also, in fixed screen cloth
When, on the inner wall of module shell design specialized step, this structure can occupy more rear operatic tunes space, after influencing
The effective rate of utilization in operatic tunes space also will affect the acoustical behavior of loudspeaker mould group.
Utility model content
The purpose of this utility model is to provide a kind of new solutions of loudspeaker mould group.
First aspect according to the present utility model provides a kind of loudspeaker mould group, including module shell and setting
Loudspeaker monomer in module shell inner cavity, the loudspeaker monomer by the space of module shell inner cavity be separated into before the operatic tunes and
The operatic tunes afterwards；It is provided with grid baffle in the rear operatic tunes, the rear operatic tunes is separated into sound-absorbing along direction of vibration by the grid baffle
Particle chamber and airflow channel, the sound-absorbing particle is intracavitary to be filled with sound-absorbing particle, and disengaging has vibratory flow in the airflow channel,
The grid baffle is configured as: for stopping sound-absorbing particle to enter loudspeaker monomer, and being passed through for vibratory flow and is made to vibrate
Air-flow can pass in and out sound-absorbing particle chamber.
Optionally, the grid baffle uses hard plate material, and multiple airflow holes are offered on the hard plate material；Or
Person is that the grid baffle is the screen cloth made of wire or hard fibre braiding, and edge is provided with hard edge
Frame.
Optionally, the ratio between aperture of the partial size of the sound-absorbing particle and the airflow hole is more than or equal to 2；The sound-absorbing
The ratio between mesh aperture of the partial size of particle and the screen cloth is more than or equal to 2.
Optionally, in the rear operatic tunes, the grid baffle is in horizontally disposed.
Optionally, at least one side of the grid baffle is fixedly connected with the side wall of module shell inner cavity, the grid
The side wall on remaining side and module shell inner cavity of baffle fits together.
Optionally, the position for being fixedly connected and/or being bonded with the grid baffle on the side wall of the module shell inner cavity
For straight wall.
Optionally, the side wall of the side of the grid baffle and the module shell inner cavity is using injection molding connection, welding, hot melt
Connection or the mode being glued are fixedly connected.
Optionally, card slot is provided on the side wall of the module shell inner cavity, the grid baffle and the card slot are clamped
Together.
Optionally, the filling aperture for being connected to the sound-absorbing particle chamber is additionally provided on the module shell, in the filling aperture
On be provided with sealing cover for sealing the filling aperture.
The second aspect according to the present utility model, provides a kind of electronic equipment, including any of the above-described kind of loudspeaker
Mould group.
Loudspeaker mould group provided by the embodiment of the utility model is provided with grid baffle, grid gear behind in the operatic tunes
The rear operatic tunes is separated into sound-absorbing particle chamber and airflow channel on direction of vibration by plate, and the vibratory flow flowed in airflow channel can be with
It is intracavitary that sound-absorbing particle is smoothly passed in and out across grid baffle, to be contacted with sound-absorbing particle.Setting side based on grid baffle
To making it have biggish area, for air-flow quickly, smoothly pass over, mass-transfer efficiency is improved, so as to make sound-absorbing particle
Preferable sound-absorbing effect is played, and then the acoustical behavior of loudspeaker mould group can be promoted.
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 structural exploded view of loudspeaker mould group provided by the embodiment of the utility model.
Fig. 2 is the structural schematic diagram of loudspeaker mould group provided by the embodiment of the utility model.
Fig. 3 is a kind of structural schematic diagram of grid baffle provided by the embodiment of the utility model.
Description of symbols:
1- upper casing, 2- loudspeaker monomer, 3- grid baffle, 301- screen cloth, 302- hard frame, 4- lower casing, 5- sealing cover,
6- filling aperture, 7- sound-absorbing particle chamber, 8- side wall, 9- airflow channel, shell in 10-.
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 embodiment provides a kind of loudspeaker mould group, referring to Fig.1 and shown in Fig. 2, the loudspeaker mould group
Structure are as follows: including the module shell with inner cavity, be provided with loudspeaker monomer 2 in the module shell inner cavity, the loudspeaker
The space of module shell inner cavity is separated into the preceding operatic tunes and the rear operatic tunes by monomer 2.Grid baffle 3 is provided in the rear operatic tunes, and should
The rear operatic tunes is separated into sound-absorbing particle chamber 7 and airflow channel 9 along direction of vibration by grid baffle 3.It is filled in sound-absorbing particle chamber 7
Sound-absorbing particle.Disengaging has the vibratory flow of flowing in airflow channel 9.Grid baffle 3 is configured as: for stopping sound-absorbing particle
It passes through into loudspeaker monomer 2, and for vibratory flow so that vibratory flow can smoothly, quickly pass in and out sound-absorbing particle chamber 7.
Grid baffle 3 is arranged behind, is being vibrated by grid baffle 3 for the loudspeaker mould group of the utility model in the operatic tunes
The rear operatic tunes is separated into 9 two parts of sound-absorbing particle chamber 7 and airflow channel on direction.Wherein, the vibration gas flowed in airflow channel 9
Stream can pass through grid baffle 3 and free in and out sound-absorbing particle chamber 7, to come into full contact with sound-absorbing particle.Based on setting for grid baffle 3
Direction is set to allow to that there is biggish area, thus be conducive to make air-flow quickly, smoothly pass over, improve mass-transfer efficiency, energy
Sound-absorbing particle is set to play excellent sound-absorbing effect, to be conducive to reduce the mould group resonance frequency F0 of loudspeaker mould group, in extension
Low frequency bandwidth, and then can achieve the effect that optimize loudspeaker mould group acoustical behavior.
Loudspeaker mould group provided by the embodiment of the utility model is additionally provided with connection sound-absorbing particle chamber 7 on module shell
Filling aperture 6, and be provided in the filling aperture 6 sealing cover 5 for sealing the filling aperture 6.The design of filling aperture 6 is conducive to fill
Fill sound-absorbing particle.Wherein, filling aperture 6 can be circular hole, the shape well known in the art such as square hole, elliptical aperture, the utility model pair
This is with no restriction.Also, after the completion of sound-absorbing granule filling, also processing is sealed to filling aperture 6, with the operatic tunes after guarantee
Leakproofness.Filling aperture 6 is sealed using sealing cover 5 in the utility model.Wherein, sealing cover 5 can using PET material,
The material well known in the art production such as PC material, PP material, the utility model to this with no restriction.
The module shell of the utility model, structure can be with are as follows: referring to Fig.1 and shown in Fig. 2, including it is combined
Upper casing 1, lower casing 4 and middle shell 10.Wherein, upper casing 1 is covered on the top of entire sound-absorbing particle chamber 7, to close sound-absorbing particle chamber
7.When module shell uses the structure, filling aperture 6 can be arranged on upper casing 1, in order to filling into sound-absorbing particle chamber 7
Sound-absorbing particle.Certainly, the structure of module shell can also be designed as other structures form well known in the art according to actual needs,
The utility model to this with no restriction.
Wherein, it can be combined together using welding or by the way of being glued between upper casing 1, lower casing 4 and middle shell 10,
Fastener can be used, such as: screw, bolt etc. are combined together.Certainly, may be used also between upper casing 1, lower casing 4 and middle shell 10
To be combined together using other way well known in the art, the utility model to this with no restriction.
The grid baffle 3 of the utility model is hard structure compared with conventional separation screen cloth.Using hard structure
Advantage is: convenient for preferably being combined with module shell, and it is more preferable to be fixed on rear operatic tunes rear stability.
Optionally, grid baffle 3 can use hard plate material, and several air-flows are uniformly provided on the hard plate material
Hole.Hard plate material is convenient for and the combination of module shell, the airflow hole opened up thereon pass through for the vibratory flow in airflow channel 9
Enter in sound-absorbing particle chamber 7 afterwards and contacted with sound-absorbing particle, so that sound-absorbing particle plays better sound-absorbing effect.Wherein, hard plate
Material can using metal material well known in the art (such as aluminium alloy, steel etc.) or hard plastics (such as: ABS,
POM, PS, PMMA, PC, PET, PBT, PPO etc.).It is of course also possible to use other hard materials well known in the art, this is practical
It is novel to this with no restriction.Also, airflow hole can the shape well known in the art such as rounded, rectangular, triangle, this is practical new
Type to this with no restriction.But the size of airflow hole should be less than the particle size of sound-absorbing particle, to prevent sound-absorbing particle from leaking out
Enter loudspeaker monomer 2 afterwards.Specifically, the size of airflow hole can be according to the size flexible setting of sound-absorbing particle, this is practical new
Type to this with no restriction.In a specific embodiment of the utility model, the partial size of sound-absorbing particle and the aperture of airflow hole
The ratio between be more than or equal to 2.Especially, the partial size of smallest particles should be greater than airflow hole in sound-absorbing particle.The design can have
Effect prevents sound-absorbing particle to be stuck in airflow hole and blocking airflow hole, so that the unsmooth flowing of vibratory flow is caused to happen, energy
Ensure that the vibratory flow sound-absorbing particle intracavitary with sound-absorbing particle is good to contact.
Optionally, refering to what is shown in Fig. 3, grid baffle 3 can also be for made of wire or hard fibre braiding
Screen cloth 301, and edge is provided with hard frame 302.Wherein, hard frame 302 can use metal material well known in the art
Expect (such as aluminium alloy, steel etc.) or hard plastics (such as: ABS, POM, PS, PMMA, PC, PET, PBT, PPO etc.).
It is of course also possible to use other hard materials well known in the art, the utility model to this with no restriction.Due to screen cloth 301
Body have it is mesh-structured, therefore enter after being passed through for the vibratory flow in airflow channel 9 in sound-absorbing particle chamber 7 with sound-absorbing particle
Contact, so that sound-absorbing particle plays better sound-absorbing effect.But mesh is also sized to less than sound-absorbing particle on screen cloth 301
Particle size, sound-absorbing particle can be lived by enclosing while ventilative, influence loudspeaker monomer to prevent sound-absorbing particle from falling
2.In a specific embodiment of the utility model, the ratio between the partial size of sound-absorbing particle and the mesh aperture of screen cloth 301 are greater than
Or it is equal to 2.Especially, the partial size of smallest particles should be greater than the mesh of screen cloth 301 in sound-absorbing particle.The design can effectively be prevented
Only sound-absorbing particle is stuck in mesh and blocks mesh, to cause the unsmooth flowing phenomenon of vibratory flow, and then can guarantee vibration
Air-flow is well contacted with sound-absorbing particle.
Certainly, grid baffle 3 is also not necessarily limited to two kinds of above-mentioned structures, or other structures, the utility model pair
This is with no restriction.
The loudspeaker mould group of the utility model, behind in the operatic tunes, grid baffle 3 can be in horizontally disposed.Certainly, grid
Baffle 3 inclined can also be set, specifically can be after as long as forming sound-absorbing particle and airflow channel in a certain direction
The flexible structure of the operatic tunes adjusts, the utility model to this with no restriction.
The grid baffle 3 of the utility model can make a line and mould group of grid baffle 3 when in conjunction with module shell
The side wall 8 of shell inner cavity is fixedly connected, remaining side of grid baffle 3 fits together with the side wall 8 of module shell inner cavity.This is
Cause are as follows: grid baffle 3 is hard structure, and a line is connect with module shell can play the fixed entire grid baffle 3 of support
Effect, such fixed form is more simple, cost is lower but stability is fine.Certainly, in order to it is more stable can also be by net
The side wall 8 of each Bian Douyu module shell inner cavity of lattice baffle 3 is fixedly connected.It can specifically select according to the actual situation, this reality
With it is novel to this with no restriction.
Wherein, when the side of grid baffle 3 is fixedly connected with the side wall 8 of module shell inner cavity, can using welding, be glued,
The connection types such as injection molding, hot melt, can also be using other connection types well known in the art such as clamping, the utility model pair
This is with no restriction.
Wherein, the corresponding position for being fixedly connected and/or being bonded with grid baffle 3 is straight on the side wall 8 of module shell inner cavity
Wall.That is: in fixed mesh baffle 3, it is not necessary that special step structure is arranged on the side wall 8 of module shell inner cavity,
Rear operatic tunes space can be made to obtain significantly more efficient utilization, the space of the operatic tunes after will not wasting.
The grid baffle 3 of the utility model, can also be in advance in the side of module shell inner cavity when in conjunction with module shell
Card slot compatible with each side of grid baffle 3 is set on wall 8, the side of grid baffle 3 is connected to card when installing grid baffle 3
In slot.The mode of clamping is very flexible, dismantles more convenient.
In addition, the loudspeaker mould group of the utility model, the intracavitary filling sound-absorbing particle of sound-absorbing particle is more using non-foamed
Porous material, such as: the material well known in the art such as active carbon, natural zeolite, active silica, molecular sieve, this is practical new
Type to this with no restriction.
On the other hand, the utility model embodiment additionally provides a kind of electronic equipment, which includes any of the above-described
Kind loudspeaker mould group.
Wherein, the electronic equipment of the utility model can be smart phone, smartwatch, VR equipment, IPAD, notebook
Deng, the utility model to this with no restriction.
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 (10)
1. a kind of loudspeaker mould group, which is characterized in that including module shell and the loudspeaker being arranged in module shell inner cavity
The space of module shell inner cavity is separated into the preceding operatic tunes and the rear operatic tunes by monomer, the loudspeaker monomer；
It is provided with grid baffle in the rear operatic tunes, the rear operatic tunes is separated into sound-absorbing particle along direction of vibration by the grid baffle
Chamber and airflow channel, the sound-absorbing particle is intracavitary to be filled with sound-absorbing particle, and disengaging has vibratory flow in the airflow channel, described
Grid baffle is configured as: for stopping sound-absorbing particle to enter loudspeaker monomer, and being passed through for vibratory flow and is made vibratory flow
Sound-absorbing particle chamber can be passed in and out.
2. loudspeaker mould group according to claim 1, which is characterized in that the grid baffle use hard plate material, and
Multiple airflow holes are offered on the hard plate material；
Either,
The grid baffle is the screen cloth made of wire or hard fibre braiding, and edge is provided with hard edge
Frame.
3. loudspeaker mould group according to claim 2, which is characterized in that the partial size and the airflow hole of the sound-absorbing particle
The ratio between aperture be more than or equal to 2；
The ratio between partial size and the mesh aperture of the screen cloth of the sound-absorbing particle are more than or equal to 2.
4. loudspeaker mould group according to claim 1, which is characterized in that in the rear operatic tunes, the grid baffle is in
It is horizontally disposed.
5. loudspeaker mould group according to claim 1, which is characterized in that at least one side of the grid baffle and mould group
The side wall of shell inner cavity is fixedly connected, and the side wall on remaining side and module shell inner cavity of the grid baffle fits together.
6. loudspeaker mould group according to claim 5, which is characterized in that on the side wall of the module shell inner cavity with it is described
The position that grid baffle is fixedly connected and/or is bonded is straight wall.
7. loudspeaker mould group according to claim 5, which is characterized in that the side of the grid baffle and the module shell
The side wall of inner cavity is fixedly connected by the way of injection molding connection, welding, hot-melt adhesive paste or splicing.
8. loudspeaker mould group according to claim 1, which is characterized in that be provided on the side wall of the module shell inner cavity
Card slot, the grid baffle are connected together with the card slot.
9. loudspeaker mould group according to claim 1, which is characterized in that be additionally provided with described in connection on the module shell
The filling aperture of sound-absorbing particle chamber, is provided with the sealing cover for sealing the filling aperture in the filling aperture.
10. a kind of electronic equipment, which is characterized in that including the described in any item loudspeaker mould groups of such as claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920178220.1U CN209283504U (en) | 2019-01-31 | 2019-01-31 | A kind of loudspeaker mould group and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920178220.1U CN209283504U (en) | 2019-01-31 | 2019-01-31 | A kind of loudspeaker mould group and electronic equipment |
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| Publication Number | Publication Date |
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| CN209283504U true CN209283504U (en) | 2019-08-20 |
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ID=67605937
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| CN201920178220.1U Active CN209283504U (en) | 2019-01-31 | 2019-01-31 | A kind of loudspeaker mould group and electronic equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110784816A (en) * | 2019-09-29 | 2020-02-11 | 歌尔科技有限公司 | Acoustic device and electronic apparatus |
| WO2021135642A1 (en) * | 2019-12-30 | 2021-07-08 | 歌尔股份有限公司 | Sound production device module and assembly method |
-
2019
- 2019-01-31 CN CN201920178220.1U patent/CN209283504U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110784816A (en) * | 2019-09-29 | 2020-02-11 | 歌尔科技有限公司 | Acoustic device and electronic apparatus |
| WO2021135642A1 (en) * | 2019-12-30 | 2021-07-08 | 歌尔股份有限公司 | Sound production device module and assembly method |
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