CN207304902U - Loudspeaker module and electronic equipment - Google Patents
Loudspeaker module and electronic equipment Download PDFInfo
- Publication number
- CN207304902U CN207304902U CN201720927193.4U CN201720927193U CN207304902U CN 207304902 U CN207304902 U CN 207304902U CN 201720927193 U CN201720927193 U CN 201720927193U CN 207304902 U CN207304902 U CN 207304902U
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- resonant cavity
- operatic tunes
- loudspeaker module
- accommodating chamber
- cavity
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- 238000004891 communication Methods 0.000 claims abstract description 16
- 238000001746 injection moulding Methods 0.000 claims description 4
- 208000002925 dental caries Diseases 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000178 monomer Substances 0.000 description 15
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a kind of loudspeaker module and electronic equipment.The module includes module casing and sound-producing device, and accommodating chamber and multiple resonant cavities are provided with module casing, and sound-producing device is arranged in accommodating chamber, and accommodating chamber is divided into the preceding operatic tunes and the rear operatic tunes by sound-producing device, and the preceding operatic tunes is connected by sound mouth with exterior space；Multiple resonant cavity serial communications, one in multiple resonant cavities connects with the preceding operatic tunes.Multiple resonant cavities are cascaded, using the teaching of the invention it is possible to provide the noise resonance band of a wideband, can so absorb the noise of more wide-band.In this way, multiple resonant cavities of serial communication can improve the sounding effect of loudspeaker module.
Description
Technical field
Electroacoustic switch technology field is the utility model is related to, is set more particularly, to a kind of loudspeaker module and electronics
It is standby.
Background technology
In existing loudspeaker module, in order to reduce noise, closed resonant cavity is usually set on module casing.Altogether
The chamber that shakes is connected with the preceding operatic tunes.Resonant cavity has apparent improvement to loudspeaker module FR.
However, existing resonant cavity is single cavity.The unicity of intrinsic frequency is limited to, which adjusts frequency
Limited width, it is impossible to the effective noise for absorbing more wide-band.
Utility model content
One purpose of the utility model is to provide a kind of new solution of loudspeaker module.
A kind of first aspect according to the present utility model, there is provided loudspeaker module.The module includes module casing and hair
Acoustic device, is provided with accommodating chamber and multiple resonant cavities in the module casing, and the sound-producing device is arranged on the receiving
The accommodating chamber is divided into the preceding operatic tunes and the rear operatic tunes by intracavitary, the sound-producing device, and the preceding operatic tunes passes through sound mouth and outside
Space connects；Multiple resonant cavity serial communications, one in multiple resonant cavities connects with the preceding operatic tunes.
Alternatively, multiple resonant cavities include the first resonant cavity and the second resonant cavity, first resonant cavity and described
Second resonant cavity is neighbour to be set, and the first communicating passage is provided between first resonant cavity and second resonant cavity,
Any one in first resonant cavity and second resonant cavity is provided with described second between the preceding operatic tunes and connects
Passage.
Alternatively, first resonant cavity and second resonant cavity with the preceding operatic tunes is neighbour sets, and described the
One resonant cavity and second resonant cavity are located at the sidepiece of the preceding operatic tunes.
Alternatively, the module casing includes upper casing, middle shell, rear cover and lower cover, and the middle shell includes side wall and by described
Side wall encloses the accommodating chamber vacancy section formed and multiple resonant cavity vacancy sections；The upper casing is covered in the accommodating chamber vacancy section
And the upper end of the multiple resonant cavity vacancy section, the rear cover are covered in the lower end of the accommodating chamber vacancy section, the lower cover
Cover in the lower end of the multiple resonant cavity vacancy section, to be enclosed the accommodating chamber and multiple resonant cavities.
Alternatively, at least one in the upper casing, the rear cover and the lower cover between the middle shell using ultrasound
It is welded together.
Alternatively, the middle shell is integrated injection molding.
Alternatively, the resonant cavity is independently arranged airtight cavity, and multiple airtight cavities connect by described first
Circulation passage serial communication.Alternatively, the resonant cavity is the small cavity isolated by a large cavity by partition plate, multiple described
Small cavity passes through the first communicating passage serial communication.
Alternatively, sidepiece of the preceding operatic tunes positioned at the rear operatic tunes.
Other side according to the present utility model, there is provided a kind of electronic equipment.It is new that the electronic equipment includes this practicality
The loudspeaker module that type provides.
The inventor of the utility model has found that in the prior art, the resonant cavity of loudspeaker module is single cavity.By
It is limited to the unicity of intrinsic frequency, it is limited which adjusts band width, it is impossible to the effective noise for absorbing more wide-band.Cause
This, the technical assignment or the technical problem to be solved is that those skilled in the art never expect that the utility model to be realized
Or it is not expected that, therefore the utility model is a kind of new technical solution.
In the utility model embodiment, multiple resonant cavities are provided with module casing.Multiple resonant cavity serial communications,
And one of resonant cavity is connected with the preceding operatic tunes.The loudspeaker monomer acoustic pressure incident in sounding is promoted in the first communicating passage
Air movement, and compress most inner side resonant cavity in gas, at the same time, also increase the air pressure in other resonant cavities, this
Sample forms the resonator system of a coupling.Multiple resonant cavities are cascaded, using the teaching of the invention it is possible to provide the noise resonance band of a wideband,
The noise of more wide-band can so be absorbed.In this way, multiple resonant cavities of serial communication can improve loudspeaker mould
The sounding effect of group.
By referring to the drawings to the detailed description of the exemplary embodiment of the utility model, the utility model it is other
Feature and its advantage will be made apparent from.
Brief description of the drawings
It is combined in the description and the attached drawing of a part for constitution instruction shows the embodiment of the utility model, and
And together with the principle that its explanation is used to explain the utility model.
Fig. 1 is the exploded view of the loudspeaker module of one embodiment according to the present utility model.
Fig. 2 is the structural representation of the module casing for being not provided with lower cover and rear cover of one embodiment according to the present utility model
Figure.
Fig. 3 is the loudspeaker module of the loudspeaker module with single resonant cavity of one embodiment according to the present utility model
Transmit the comparison diagram of loss.
Description of reference numerals：
11：First resonant cavity；12：Second resonant cavity；13：Middle shell；14：Upper casing；15：Rear cover；17：Lower cover；18：Preceding sound
Chamber；19：The operatic tunes afterwards；20：Partition plate；21：First communicating passage；22：Second communicating passage；23：Loudspeaker monomer；24：Magnetic conductive board.
Embodiment
The various exemplary embodiments of the utility model are described in detail now with reference to attached drawing.It should be noted that：It is unless another
Illustrate 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.
The description only actually at least one exemplary embodiment is illustrative to be never used as to this practicality below
New and its application or any restrictions used.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent attached drawing in a attached drawing.
Fig. 1 is the exploded view of the loudspeaker module of one embodiment according to the present utility model.Fig. 2 is new according to this practicality
The structure diagram of the module casing for being not provided with lower cover and rear cover of one embodiment of type.
As shown in Figs. 1-2, which includes module casing and sound-producing device.Receiving is provided with module casing
Chamber and multiple resonant cavities.Sound-producing device is arranged in accommodating chamber.Accommodating chamber is divided into the preceding operatic tunes 18 and rear sound by sound-producing device
Chamber 19.The preceding operatic tunes 18 is connected by sound mouth with exterior space.
Multiple resonant cavity serial communications.One in multiple resonant cavities is connected by the second communicating passage 22 and the preceding operatic tunes 18
It is logical.
Sound-producing device can be moving iron type loud-speaker monomer or coil-moving speaker monomer.Both monomers are this area
Common knowledge, do not elaborate herein.
Resonant cavity is closed cavity.Serial communication refers to that multiple resonant cavities sequentially connect one by one.The shape between resonant cavity
Into the first communicating passage 21.One and only one resonant cavity is connected by the second communicating passage 22 with the preceding operatic tunes 18.
Resonant cavity is independently arranged airtight cavity.Multiple airtight cavities pass through 21 serial communication of the first communicating passage.
Can also be that resonant cavity is the small cavity isolated by a large cavity by partition plate 20, multiple small cavitys pass through
First communicating passage, 21 serial communication.This mode makes the making of resonant cavity become simple, and module casing is compact-sized.
Resonant cavity shape can be, but not limited to, cuboid, sphere, cone etc. or those skilled in the art's root
The cavity with irregular structure designed according to the shape of equipment headspace to be installed.
In the utility model embodiment, multiple resonant cavities are provided with module casing.Multiple resonant cavity serial communications,
And one of resonant cavity is connected with the preceding operatic tunes 18.The acoustic pressure incident in sounding of loudspeaker monomer 23 promotes the first connection logical
Air movement in road 21, and the gas most in the resonant cavity of inner side is compressed, at the same time, also increase the gas in other resonant cavities
Pressure, so forms the resonator system of a coupling.Multiple resonant cavities are cascaded, using the teaching of the invention it is possible to provide the noise resonance of a wideband
Frequency range, can so absorb the noise of more wide-band.In this way, multiple resonant cavities of serial communication, which can improve, raises one's voice
The sounding effect of device module.
Those skilled in the art can adjust the noise of resonant cavity by setting the quantity, shape and volume of resonant cavity
Resonance band, to adjust noise elimination frequency band.
In one example, as shown in Figs. 1-2, module casing includes upper casing 14, middle shell 13, rear cover 15 and lower cover 17.In
Shell 13 is engraved structure.Middle shell 13 includes side wall and encloses the accommodating chamber vacancy section formed and multiple resonant cavity hollow outs by side wall
Area.
Upper casing 14 covers the upper end in accommodating chamber vacancy section and multiple resonant cavity vacancy sections, and rear cover 15 is covered in accommodating chamber
The lower end of vacancy section, lower cover 17 are covered in the lower end of multiple resonant cavity vacancy sections, to be enclosed accommodating chamber and multiple resonance
Chamber.
The second communicating passage 22 for connecting a resonant cavity and the preceding operatic tunes 18 is provided with side wall.
It should be noted that the direction of vibration of the upper and lower vibrating diaphragm for being oriented parallel to loudspeaker monomer 23.Loudspeaker monomer will
Accommodating chamber is divided into the preceding operatic tunes 18 and the rear operatic tunes 19.Second communicating passage 22 is connected with the preceding operatic tunes.
For example, upper casing 14, rear cover 15 and lower cover 17 are in flat structure.Rear cover 15 is made by metal material, to subtract
The thickness of few module casing.Also, the heat dissipation performance of metal material is good.Magnetic conductive board 24 is embedded with rear cover 15.Loudspeaker
Monomer 23 is fixed on magnetic conductive board 24, wherein, the magnetic circuit system of loudspeaker monomer 23 is close to magnetic conductive board 24.
In this way, the making of module casing becomes easy.For example, upper casing 14, middle shell 13, lower cover 17 are by TPU materials
Material is made by the way of injection molding.Rear cover 15 is made by sheet metal by stamping forming mode.
In addition, middle shell 13 is the structure of hollow out.In integrated injection molding, mould need not use sliding block, so as to reduce
The injection difficulty of middle shell 13.
In addition, the installation of loudspeaker monomer 23 becomes easy.Engraved for example, loudspeaker monomer 23 is directly mounted to accommodating chamber
In dead zone.The vibrating diaphragm of loudspeaker monomer 23 is opposite with upper casing 14.Space between vibrating diaphragm and upper casing 14 for the preceding operatic tunes 18 at least
A part.The magnetic circuit system of loudspeaker monomer 23 is bonded and fixed on magnetic conductive board 24.
Alternatively, at least one in upper casing 14, rear cover 15 and lower cover 17 is connected between middle shell 13 using ultra-sonic welded
Together.Ultra-sonic welded has speed of welding fast, the characteristics of being connected firmly.For example, upper casing 14, middle shell 13 and lower cover 17 are TPU
Material.Upper casing 14 is welded to the upper end of middle shell 13 using ultra-sonic welded, lower cover 17 is welded to the lower end of middle shell 13.
Alternatively, the rear operatic tunes 19 is located at the sidepiece of the preceding operatic tunes 18.The height of module casing can so be reduced.This area skill
Art personnel are it should be appreciated that sidepiece refers to the sidepiece of the extended surface along the preceding operatic tunes.
Preferably, multiple resonant cavities are set up in parallel.One in two resonant cavities of end connects with the preceding operatic tunes 18.
Multiple resonant cavities are in integrally elongate configuration.In this way, reduce the width and height of multiple resonant cavity entirety so that raise
Sound device module is compacter.
In addition, a resonant cavity positioned at end is connected with the preceding operatic tunes 18, relative to resonant cavity and the preceding operatic tunes 18 at middle part
Connection, this mode enable the coupling of resonator system more fully to play, have further widened noise resonance band.
In one example, multiple resonant cavities of loudspeaker module include the first resonant cavity 11 and the second resonant cavity 12.The
The 12 neighbour setting of one resonant cavity 11 and the second resonant cavity.First resonant cavity 11 or the second resonant cavity 12 are connected with the preceding operatic tunes 18.
The first communicating passage 21 is provided between first resonant cavity 11 and the second resonant cavity 12.
For example, as shown in Fig. 2, neighbour setting refers to that the first resonant cavity 11 is arranged side by side with the second resonant cavity 12 and is disposed adjacent.
Second resonant cavity 12 is connected by the second communicating passage 22 with the preceding operatic tunes 18.At work, the incident acoustic pressure of loudspeaker monomer 23
Promote the air movement in the first communicating passage 21, and compress the gas in the first resonant cavity 11, at the same time, also increase the
Air pressure in two resonant cavities 12, so forms the resonator system of a coupling.
Fig. 3 is the loudspeaker module of the loudspeaker module with single resonant cavity of one embodiment according to the present utility model
Transmit the comparison diagram of loss.
Transmission loss, which can react loudspeaker module, can eliminate the frequency range of noise.
As shown by the dotted line in fig. 3, single resonant cavity is only capable of forming a resonance peak.As shown in solid in Fig. 3, two
A resonant cavity 11,12 forms resonance peak in two frequencies, so as to absorb the noise of more wide-band.
The quantity of resonance peak is corresponding with the quantity of resonant cavity, and the number of resonant cavity can be set according to the bandwidth scope of noise
Amount, to absorb the noise of more wide-band.
In one example, as shown in Fig. 2, the first resonant cavity 11 and the second resonant cavity 12 are adjacent with the preceding operatic tunes 18, and
Positioned at the sidepiece of the preceding operatic tunes 18.In this way, module casing is compacter, and module casing is in integrally flat structure.
In this way, reducing the volume of loudspeaker module, the development trend that electronic equipment is lightening, minimizes has been complied with.
Another embodiment according to the present utility model, there is provided a kind of electronic equipment.Electronic equipment can be but not office
It is limited to mobile phone, tablet computer, intelligent watch, game machine, laptop, intercom, earphone etc..The electronic equipment includes this reality
With the loudspeaker module of new offer.
The electronic equipment has the characteristics of noise is small, and sound effect is good.
Although some specific embodiments of the utility model are described in detail by example, this area
It is to be understood by the skilled artisans that example above merely to illustrate, 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 of, to above example
Modify.The scope of the utility model is defined by the following claims.
Claims (10)
1. a kind of loudspeaker module, it is characterised in that including module casing and sound-producing device, be provided with the module casing
Accommodating chamber and multiple resonant cavities, the sound-producing device are arranged in the accommodating chamber, and the sound-producing device is by the accommodating chamber
It is divided into the preceding operatic tunes and the rear operatic tunes, the preceding operatic tunes is connected by sound mouth with exterior space；
Multiple resonant cavity serial communications, one in multiple resonant cavities connects with the preceding operatic tunes.
2. loudspeaker module according to claim 1, it is characterised in that multiple resonant cavities include the first resonant cavity and
Second resonant cavity, first resonant cavity and second resonant cavity are neighbour to be set, in first resonant cavity and described second
The first communicating passage is provided between resonant cavity, any one in first resonant cavity and second resonant cavity and institute
Before stating the second communicating passage is provided between the operatic tunes.
3. loudspeaker module according to claim 2, it is characterised in that first resonant cavity and second resonant cavity
With being set near the preceding operatic tunes, and first resonant cavity and second resonant cavity are located at the sidepiece of the preceding operatic tunes.
4. loudspeaker module according to claim 1, it is characterised in that the module casing includes upper casing, middle shell, rear cover
And lower cover, the middle shell include side wall and enclose the accommodating chamber vacancy section formed and multiple resonant cavity hollow outs by the side wall
Area；
The upper casing covers the upper end in the accommodating chamber vacancy section and the multiple resonant cavity vacancy section, and the rear cover covers
In the lower end of the accommodating chamber vacancy section, the lower cover is covered in the lower end of the multiple resonant cavity vacancy section, to be enclosed
The accommodating chamber and multiple resonant cavities.
5. loudspeaker module according to claim 4, it is characterised in that in the upper casing, the rear cover and the lower cover
At least one linked together between the middle shell using ultra-sonic welded.
6. loudspeaker module according to claim 4, it is characterised in that the middle shell is integrated injection molding.
7. loudspeaker module according to claim 2, it is characterised in that the resonant cavity is independently arranged closed chamber
Body, multiple airtight cavities pass through the first communicating passage serial communication.
8. loudspeaker module according to claim 2, it is characterised in that the resonant cavity be by a large cavity by every
The small cavity that plate isolates, multiple small cavitys pass through the first communicating passage serial communication.
9. loudspeaker module according to claim 1, it is characterised in that the preceding operatic tunes is positioned at the side of the rear operatic tunes
Portion.
10. a kind of electronic equipment, it is characterised in that including the loudspeaker module as described in any one in claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720927193.4U CN207304902U (en) | 2017-07-28 | 2017-07-28 | Loudspeaker module and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720927193.4U CN207304902U (en) | 2017-07-28 | 2017-07-28 | Loudspeaker module and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207304902U true CN207304902U (en) | 2018-05-01 |
Family
ID=62447803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720927193.4U Active CN207304902U (en) | 2017-07-28 | 2017-07-28 | Loudspeaker module and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207304902U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107371107A (en) * | 2017-07-28 | 2017-11-21 | 歌尔股份有限公司 | Loudspeaker module and electronic equipment |
| CN110381405A (en) * | 2019-07-17 | 2019-10-25 | 歌尔科技有限公司 | A kind of earplug |
| CN114979336A (en) * | 2021-02-23 | 2022-08-30 | 北京小米移动软件有限公司 | A sound-emitting device and electronic equipment |
| US11962969B2 (en) | 2018-12-17 | 2024-04-16 | Goertek Inc. | Acoustic device and electronic apparatus |
-
2017
- 2017-07-28 CN CN201720927193.4U patent/CN207304902U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107371107A (en) * | 2017-07-28 | 2017-11-21 | 歌尔股份有限公司 | Loudspeaker module and electronic equipment |
| CN107371107B (en) * | 2017-07-28 | 2021-10-08 | 苹果公司 | Speaker module and electronic equipment |
| US11962969B2 (en) | 2018-12-17 | 2024-04-16 | Goertek Inc. | Acoustic device and electronic apparatus |
| CN110381405A (en) * | 2019-07-17 | 2019-10-25 | 歌尔科技有限公司 | A kind of earplug |
| CN114979336A (en) * | 2021-02-23 | 2022-08-30 | 北京小米移动软件有限公司 | A sound-emitting device and electronic equipment |
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