CN109788395A - Loudspeaker enclosure - Google Patents
Loudspeaker enclosure Download PDFInfo
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- CN109788395A CN109788395A CN201811650381.2A CN201811650381A CN109788395A CN 109788395 A CN109788395 A CN 109788395A CN 201811650381 A CN201811650381 A CN 201811650381A CN 109788395 A CN109788395 A CN 109788395A
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- loudspeaker
- shell
- retaining wall
- loudspeaker monomer
- plate body
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Abstract
The present invention provides a kind of loudspeaker enclosures, it includes first shell, second shell and loudspeaker monomer, first shell and loudspeaker monomer are enclosed ante-chamber, first shell, second shell and loudspeaker monomer are enclosed back cavity, sound-absorbing particle is filled in back cavity, loudspeaker monomer is equipped with leakage channel, leakage channel is revealed from side, first shell includes bottom wall, loudspeaker monomer also has magnetic yoke, bottom wall is intracavitary backward to have extended to form retaining wall, cover board is installed on retaining wall, bottom wall, retaining wall and cover board are enclosed auxiliary leak, auxiliary leak is completely covered leakage channel and is connected to ventilation space with leakage path, cover board includes the first plate body, second plate body and breathable barrier, air hole is offered on first plate body, breathable barrier is fixedly arranged on the first plate body and covers air hole so that ventilation space and back cavity air Connection；Through-hole is offered in second shell, the second plate body and magnetic yoke are contained in through-hole.Loudspeaker enclosure acoustical behavior of the invention is more preferable.
Description
[technical field]
The present invention relates to acoustic-electric field more particularly to a kind of loudspeaker enclosures for applying to portable electronic product.
[background technique]
With the arrival of mobile internet era, the quantity of Intelligent mobile equipment constantly rises.And in numerous mobile devices
Among, mobile phone is undoubtedly most common, most portable mobile terminal device.Currently, the function of mobile phone is extremely various, one of them is just
It is the music function of high-quality, therefore, the loudspeaker enclosure for playing sound is widely applied Intelligent mobile equipment till now
Among.
Loudspeaker includes the loudspeaker monomer for having the shell of accommodating space and being contained in the accommodating space, described
The accommodating space is separated into back cavity and ante-chamber by loudspeaker monomer, in order to obtain better audio frequency effect, generally requires receiving
Hold and the virtual operatic tunes is set (especially in back cavity) in space, and in the intracavitary filling sound-absorbing particle of Virtual Sound.In the related technology for
The design of the virtual operatic tunes mainly uses following several:
One, it heats scheme: separation net hot melt is fixed on barricade；
Two, complete filling scheme: monomer is ventilative by screen cloth, and back cavity whole volume passes through net as Virtual Sound cavity volume
Cloth, which blocks powder to enter, leads to noise in monomer；
Three, plate scheme: being separated by plate, forms virtual operatic tunes isolated area.
Wherein, hot melt scheme effectively cannot be such that Virtual Sound cavity volume maximizes using BOX cavity, and heat barricade and occupy
Many BOX cavity space；Complete filling scheme can be generated causes audio performance to lose because monomer leakage path outlet is unsmooth
Problem；Although plate scheme reduces volume occupied by the virtual operatic tunes barricade of hot melt, greatly improve Virtual Sound cavity volume, but after
Cavity volume fully effective cannot utilize.That is, above-mentioned three kinds of schemes can not combine leakage maximization and the virtual operatic tunes
Volume maximization.
Therefore, it is really necessary to provide a kind of new loudspeaker enclosure solution above-mentioned technical problem.
[summary of the invention]
The purpose of the present invention is to provide it is a kind of can combine leakage maximize and Virtual Sound cavity volume maximumlly raise
Sound device case.
In order to achieve the above object, the present invention provides a kind of loudspeaker enclosures, including first shell and the first shell
The loudspeaker monomer for assembling the second shell to form accommodating space and being contained in the accommodating space, the first shell with
The loudspeaker monomer is enclosed ante-chamber, and the first shell, the second shell and the loudspeaker monomer are enclosed
Back cavity, the back cavity is interior to be filled with sound-absorbing particle, and the loudspeaker monomer is equipped with and is connected to its inner space with the back cavity
Leakage channel, the loudspeaker monomer has side, and the leakage channel reveals from the side, and the first shell includes
Bottom wall, the loudspeaker monomer are fixedly arranged on the bottom wall, and the loudspeaker monomer also has a magnetic yoke, and the bottom wall is to after described
It is intracavitary to have extended to form retaining wall, cover board is installed on the retaining wall, the bottom wall, the retaining wall and the cover board are enclosed tool
There is the auxiliary leak of ventilation space, the auxiliary leak is completely covered the leakage channel and makes the ventilation space and institute
State leakage path connection, wherein the cover board includes the first plate body in the back cavity, from first plate body to described
The second plate body and breathable barrier that loudspeaker monomer extends, offer air hole, the ventilative isolation on first plate body
Part is fixedly arranged on first plate body and covers the air hole, the ventilation space by the breathable barrier and it is described after
Chamber air communication；Through-hole is offered in the second shell, second plate body and the magnetic yoke are contained in the through-hole.
Preferably, the breathable barrier and the first plate body injection molding, alternatively, the breathable barrier with it is described
First plate body is fixed by hot melt or dispensing or gum mode.
Preferably, the retaining wall is formed with installation step far from the side of the bottom wall, and the cover board is fixed on the peace
It fills on step.
Preferably, the two opposite sides of the loudspeaker monomer are respectively equipped with the leakage path, and the auxiliary leak is set
There are two and be connected to respectively with two leakage paths.
Preferably, the loudspeaker monomer is in rectangle, and it is short that two leakage paths are located at the loudspeaker monomer
Axis two opposite sides.
Preferably, the loudspeaker monomer includes the frame surrounded by frame side wall for being supported in the bottom wall and at least portion
Point be fixed on the magnetic yoke of the frame side wall, the magnetic yoke at least partly with the frame side wall along direction of vibration interval to be formed
The leakage path.
Preferably, the loudspeaker enclosure further includes through the powder filling hole that the first shell is arranged and being fixed on described first
Shell and lid set the sealing cover in the powder filling hole, and the powder filling hole is connected to the back cavity, and the sound-absorbing particle is by the powder filling
Hole pours into the back cavity.
Preferably, the retaining wall includes with spaced first retaining wall of the loudspeaker monomer and from first retaining wall
The second retaining wall and third retaining wall that both ends extend to loudspeaker monomer direction bending, second retaining wall, the third gear
Wall and the cover board are abutted with the loudspeaker monomer so that the leakage channel is completely covered in the auxiliary leak.
Preferably, one end that second retaining wall and the third retaining wall are connected to the loudspeaker monomer is higher than described the
Two retaining walls and the third retaining wall are connected to one end of first retaining wall.
Compared with the relevant technologies, loudspeaker enclosure of the invention encloses shape by the bottom wall, the retaining wall and the cover board
At auxiliary leak the sound-absorbing particle being packaged in the back cavity is isolated with the leakage channel, avoid the loudspeaker
The leakage channel of monomer is blocked by the sound-absorbing particle and causes gas pressure leak unsmooth, while increasing the leakage channel
Leakage space, improve sounding reliability；Simultaneously because the auxiliary that the bottom wall, the retaining wall and the cover board are enclosed
It is completely used for encapsulation sound-absorbing particle on the outside of leak and forms Virtual Sound chamber, for improving the frequency acoustic of the loudspeaker enclosure
Can, so that back cavity maximization utilizes, frequency acoustic performance is effectively increased, and then reach and combine leakage maximum
Change and the maximized purpose of Virtual Sound cavity volume.Further, since offer through-hole in the second shell, second plate body and
The magnetic yoke is contained in the through-hole, and the magnetic yoke can be made to leak outside, to be conducive to reduce loudspeaker enclosure in loudspeaker
Size on monomer direction of vibration.
[Detailed description of the invention]
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, in which:
Fig. 1 is the exploded view of loudspeaker enclosure of the present invention；
Fig. 2 is the structural schematic diagram of first shell in loudspeaker enclosure shown in Fig. 1；
Fig. 3 is the perspective view after the assembling of loudspeaker enclosure sector structure shown in Fig. 1
Fig. 4 is the perspective view after loudspeaker enclosure shown in Fig. 1 assembles completely；
Fig. 5 is the cut-away view in the direction loudspeaker enclosure A-A shown in Fig. 4；
Fig. 6 is the enlarged drawing of the part a in loudspeaker enclosure shown in Fig. 5.
[specific embodiment]
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiments are merely a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1 to Fig. 6, loudspeaker enclosure 100 includes that first shell 1 and the first shell 1 assemble to form receipts
The loudspeaker monomer 3 for holding the second shell 2 in space and being contained in the accommodating space, the first shell 1 are raised with described
Sound device monomer 3 is enclosed ante-chamber A, after the first shell 1, the second shell 2 and the loudspeaker monomer 3 are enclosed
Sound-absorbing particle (not shown) is filled in chamber B, the back cavity B.Wherein, the ante-chamber A is used for sounding, and the back cavity B is for changing
It is apt to the frequency acoustic performance of the loudspeaker enclosure 100.
The first shell 1 includes bottom wall 11, and the loudspeaker monomer 3 is fixedly arranged on the bottom wall 11.
The loudspeaker monomer 3 is equipped with the leakage channel 3A for being connected to its inner space with the back cavity B, the leakage
Channel 3A is sent to the back cavity B for acoustic pressure to increase the frequency acoustic performance of loudspeaker enclosure.
Wherein, the loudspeaker monomer 3 has side, and the leakage channel 3A is revealed from the side.Specifically, described
Loudspeaker monomer 3 includes being supported in the frame 31 of the bottom wall 11 surrounded by frame side wall 311 and being at least partly fixed on institute
State the magnetic yoke 33 of frame side wall 311, the magnetic yoke 33 at least partly with the frame side wall 311 along direction of vibration interval to be formed
The leakage path 3A, so that the leakage channel 3A is revealed from the side.As shown in Figure 3 and Figure 5, the vibration side
It is X-direction to the leakage direction for Z-direction, the leakage channel 3A.Certainly, in other embodiments, the leakage is logical
The leakage direction of road 3A can also be Y direction.Certainly, in other embodiments, the leakage channel can also be located at described
On frame side wall.
The bottom wall 11 has extended to form retaining wall 12 into the back cavity B, and cover board 13 is installed on the retaining wall 12, described
Bottom wall 11, the retaining wall 12 and the cover board 13 are enclosed the auxiliary leak with ventilation space 15, the auxiliary leakage
Portion is completely covered the leakage channel 3A and is connected to the ventilation space 15 with the leakage path 3A, wherein the cover board
13 include the first plate body 131 in the back cavity B, extend from first plate body 131 to the loudspeaker monomer 3 the
Two plate bodys 133 and breathable barrier 135, air hole 137 is offered on first plate body 131, and the breathable barrier 135 is solid
On first plate body 131 and the air hole 137 is covered, the ventilation space 15 passes through the breathable barrier 135
With the back cavity B air communication；Through-hole 21 is offered in the second shell 2, second plate body 133 and the magnetic yoke 33 are received
It is dissolved in the through-hole 21.When the loudspeaker monomer 3 vibrates, internal air-flow flows into described from the leakage path 3A
In ventilation space 15, then flow to the back cavity B from the ventilation space 15 through the breathable barrier 135, airflow direction such as Fig. 6
Shown in arrow.Since the auxiliary leak that the bottom wall 11, the retaining wall 12 and the cover board 13 are enclosed will be packaged in institute
The sound-absorbing particle stated in back cavity B is isolated with the leakage channel 3A, avoids the leakage channel 3A of the loudspeaker monomer 3
It is blocked by the sound-absorbing particle and causes gas pressure leak unsmooth, while increasing the leakage space of the leakage channel 3A, improved
Sounding reliability；Simultaneously because the auxiliary leak that the bottom wall 11, the retaining wall 12 and the cover board 13 are enclosed
Outside is completely used for encapsulation sound-absorbing particle and forms Virtual Sound chamber, for improving the frequency acoustic performance of the loudspeaker enclosure 100, from
And the back cavity B maximization is utilized, effectively increase frequency acoustic performance.Further, since being opened up in the second shell 2
There is through-hole 21, second plate body 133 and the magnetic yoke 33 are contained in the through-hole 21, can be made outside the magnetic yoke 33
Leakage, to be conducive to reduce size of the loudspeaker enclosure on loudspeaker monomer direction of vibration.
Wherein, it can be sealed by gluing between second plate body 133 and the second shell 2；The ventilative isolation
Part 135 is any one in non-woven fabrics, nylon mesh grid, wool weaving net, metal mesh and adjustable sound paper.
In the present embodiment, the retaining wall 12 is formed with installation step 121, the cover board far from the side of the bottom wall 11
13 are fixed on the installation step 121.
Wherein, the retaining wall 12 is fixed with the cover board 13 by ultrasonic bonding, can also pass through the side such as hot melt, gluing
Formula is fixed.
In the present embodiment, the breathable barrier 135 and 131 injection molding of the first plate body, alternatively, described ventilative
Separator 135 is fixed with first plate body 131 by hot melt or dispensing or gum mode.
In the present embodiment, the two opposite sides of the loudspeaker monomer 3 are respectively equipped with the leakage path 3A, the auxiliary
Leak sets there are two and is connected to respectively with two leakage path 3A.
Further, the loudspeaker monomer 3 is in rectangle, and two leakage path 3A are located at the loudspeaker list
3 short axle two opposite sides of body, i.e., X-direction as shown in Figure 3 and Figure 5.In this way, making the auxiliary leak can be along its long axis side
To extension, better reliability.
In the present embodiment, the loudspeaker enclosure 100 further includes through the powder filling hole 5 that the first shell 1 is arranged and consolidating
Due to the first shell 1 and lid sets the sealing cover 7 in the powder filling hole 5, and the powder filling hole 5 is connected to the back cavity B, the suction
Sound particle pours into the back cavity B by the powder filling hole 5.Certainly, in other embodiments, the powder filling hole and the sealing cover
It can be set in the second shell 2.
In the present embodiment, the retaining wall 12 include with the spaced first retaining wall 12A of the loudspeaker monomer 3 and from
The the second retaining wall 12B and third retaining wall 12C that the both ends first retaining wall 12A extend to 3 direction of loudspeaker monomer bending, institute
It states the second retaining wall 12B, the third retaining wall 12C and the cover board 13 is abutted with the loudspeaker monomer 3 so that the auxiliary
The leakage channel 3A is completely covered in leak.As shown in Fig. 2, the installation step 121 divides for sequentially connected three parts,
And three parts are located on the first retaining wall 12A, the second retaining wall 12B and the third retaining wall 12C.
Further, the second retaining wall 12B and third retaining wall 12C is connected to one end of the loudspeaker monomer 3
Higher than one end that the second retaining wall 12B and the third retaining wall 12C are connected to the first retaining wall 12A.It can make in this way
The breathable barrier 135 is obliquely installed, and flows to institute from the ventilation space 15 so as to increase air-flow through the cover board 13
State leakage space when back cavity B.
Compared with the relevant technologies, loudspeaker enclosure of the invention passes through the bottom wall 11, the retaining wall 12 and the cover board 13
The auxiliary leak being enclosed is isolated by the sound-absorbing particle being packaged in the back cavity B with the leakage channel 3A, is avoided
The leakage channel 3A of the loudspeaker monomer 3 is blocked by the sound-absorbing particle and is caused gas pressure leak unsmooth, is increased simultaneously
The leakage space of the leakage channel 3A, improves sounding reliability；Simultaneously because the bottom wall 11, the retaining wall 12 and institute
It states and is completely used for encapsulation sound-absorbing particle formation Virtual Sound chamber on the outside of the auxiliary leak that cover board 13 is enclosed, for improving
The frequency acoustic performance of loudspeaker enclosure 100 is stated, so that back cavity B maximization utilizes, effectively increases frequency acoustic
Can, and then reach and combine leakage maximization and the maximized purpose of Virtual Sound cavity volume.Further, since the second shell
Through-hole 21 is offered on 2, second plate body 133 and the magnetic yoke 33 are contained in the through-hole 21, can make the magnetic
Yoke 33 leaks outside, to be conducive to reduce size of the loudspeaker enclosure on loudspeaker monomer direction of vibration.
Above-described is only embodiments of the present invention, it should be noted here that coming for those of ordinary skill in the art
It says, without departing from the concept of the premise of the invention, improvement can also be made, but these are all belonged to the scope of protection of the present invention.
Claims (9)
1. a kind of loudspeaker enclosure, assembled including first shell, with the first shell second shell to form accommodating space and
The loudspeaker monomer being contained in the accommodating space, the first shell and the loudspeaker monomer are enclosed ante-chamber, institute
It states first shell, the second shell and the loudspeaker monomer and is enclosed back cavity, be filled with sound-absorbing particle in the back cavity,
The loudspeaker monomer is equipped with the leakage channel for being connected to its inner space with the back cavity, and the loudspeaker monomer has side
Face, the leakage channel are revealed from the side, and the first shell includes bottom wall, and the loudspeaker monomer is fixedly arranged on the bottom
On wall, the loudspeaker monomer also has magnetic yoke, which is characterized in that and the bottom wall has extended to form retaining wall into the back cavity,
Cover board is installed on the retaining wall, the bottom wall, the retaining wall and the cover board are enclosed the auxiliary with ventilation space and let out
Leakage portion, the auxiliary leak are completely covered the leakage channel and are connected to the ventilation space with the leakage path,
In, the cover board includes the first plate body in the back cavity, extends from first plate body to the loudspeaker monomer
Second plate body and breathable barrier offer air hole on first plate body, and the breathable barrier is fixedly arranged on described first
On plate body and the air hole is covered, the ventilation space passes through the breathable barrier and the back cavity air communication；It is described
Through-hole is offered in second shell, second plate body and the magnetic yoke are contained in the through-hole.
2. loudspeaker enclosure according to claim 1, which is characterized in that the breathable barrier and first plate body are molded
Molding, alternatively, the breathable barrier is fixed with first plate body by hot melt or dispensing or gum mode.
3. loudspeaker enclosure according to claim 1, which is characterized in that the retaining wall is formed with far from the side of the bottom wall
Installation step, the cover board are fixed on the installation step.
4. loudspeaker enclosure according to claim 1, which is characterized in that the two opposite sides of the loudspeaker monomer are respectively equipped with
The leakage path, the auxiliary leak set there are two and are connected to respectively with two leakage paths.
5. loudspeaker enclosure according to claim 4, which is characterized in that the loudspeaker monomer is in rectangle, is let out described in two
Leakage channel is located at loudspeaker monomer short axle two opposite sides.
6. loudspeaker enclosure according to claim 1, which is characterized in that the loudspeaker monomer includes being supported in the bottom wall
The frame surrounded by frame side wall and the magnetic yoke for being at least partly fixed on the frame side wall, the magnetic yoke at least partly with institute
Frame side wall is stated along direction of vibration interval to form the leakage path.
7. loudspeaker enclosure according to claim 1, which is characterized in that the loudspeaker enclosure further includes through the first shell
The powder filling hole of body setting and be fixed on the first shell and lid sets the sealing cover in the powder filling hole, the powder filling hole and it is described after
Chamber connection, the sound-absorbing particle pour into the back cavity by the powder filling hole.
8. loudspeaker enclosure described in any one of -7 according to claim 1, which is characterized in that the retaining wall includes and the loudspeaking
Spaced first retaining wall of device monomer and bending extends from first retaining wall both ends to the loudspeaker monomer direction the
Two retaining walls and third retaining wall, second retaining wall, the third retaining wall and the cover board abutted with the loudspeaker monomer so that
It obtains the auxiliary leak and the leakage channel is completely covered.
9. loudspeaker enclosure according to claim 8, which is characterized in that second retaining wall and the third retaining wall are connected to
One end of the loudspeaker monomer is higher than second retaining wall and the third retaining wall is connected to one end of first retaining wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811650381.2A CN109788395B (en) | 2018-12-31 | 2018-12-31 | Loudspeaker box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811650381.2A CN109788395B (en) | 2018-12-31 | 2018-12-31 | Loudspeaker box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109788395A true CN109788395A (en) | 2019-05-21 |
| CN109788395B CN109788395B (en) | 2021-05-04 |
Family
ID=66499020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811650381.2A Expired - Fee Related CN109788395B (en) | 2018-12-31 | 2018-12-31 | Loudspeaker box |
Country Status (1)
| Country | Link |
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| CN (1) | CN109788395B (en) |
Cited By (6)
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|---|---|---|---|---|
| CN111163406A (en) * | 2019-12-30 | 2020-05-15 | 歌尔股份有限公司 | Sound production device and speaker module |
| CN111818420A (en) * | 2019-09-17 | 2020-10-23 | 华为技术有限公司 | Loudspeaker and terminal |
| WO2021000134A1 (en) * | 2019-06-30 | 2021-01-07 | 瑞声声学科技(深圳)有限公司 | Loudspeaker enclosure |
| WO2021135132A1 (en) * | 2019-12-31 | 2021-07-08 | 歌尔股份有限公司 | Sound production apparatus and electronic device |
| CN113365170A (en) * | 2021-05-14 | 2021-09-07 | 荣耀终端有限公司 | Loudspeaker module and electronic equipment |
| CN114554372A (en) * | 2022-03-21 | 2022-05-27 | 歌尔股份有限公司 | Sound production device and electronic device |
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| CN111818420A (en) * | 2019-09-17 | 2020-10-23 | 华为技术有限公司 | Loudspeaker and terminal |
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| CN114554372A (en) * | 2022-03-21 | 2022-05-27 | 歌尔股份有限公司 | Sound production device and electronic device |
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| CN109788395B (en) | 2021-05-04 |
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