CN109788396A - Loudspeaker enclosure - Google Patents
Loudspeaker enclosure Download PDFInfo
- Publication number
- CN109788396A CN109788396A CN201811650385.0A CN201811650385A CN109788396A CN 109788396 A CN109788396 A CN 109788396A CN 201811650385 A CN201811650385 A CN 201811650385A CN 109788396 A CN109788396 A CN 109788396A
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- Prior art keywords
- shell
- loudspeaker
- retaining wall
- loudspeaker monomer
- wall
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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 to fill sound-absorbing particle, loudspeaker monomer is equipped with the leakage channel for being connected to its inner space with back cavity, loudspeaker monomer has side, leakage channel is revealed from side, first shell includes the bottom wall of fixed loudspeaker monomer, a wherein side in bottom wall and second shell extends to form top retaining wall, another party extends to form lower retaining wall, air hole is offered on lower retaining wall, breathable barrier covers air hole, bottom wall, second shell, top retaining wall, lower retaining wall and breathable barrier are enclosed the auxiliary leak that leakage channel is completely covered and is connected to ventilation space with leakage path, ventilation space by it is ventilative every Off member and back cavity air communication, auxiliary leak separate sound-absorbing particle and leakage path.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 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 enclosure further includes top retaining wall, lower retaining wall and ventilative isolation
Part, the wherein side in the top retaining wall and the lower retaining wall extend to form from the bottom wall into the back cavity, another party from
The second shell is extended to form into the back cavity, and air hole is offered on the lower retaining wall, and the breathable barrier is fixed
In on the lower retaining wall and covering the air hole, the bottom wall, the second shell, the top retaining wall, the lower retaining wall and
The breathable barrier is enclosed the auxiliary leak with ventilation space, and the top retaining wall and the lower retaining wall are raised with described
Sound device monomer abuts, so that the auxiliary leak is completely covered the leakage channel and lets out the ventilation space with described
Channel connection is leaked, the ventilation space will by the breathable barrier and the back cavity air communication, the auxiliary leak
The sound-absorbing particle and the leakage path separate.
Preferably, the air hole is located at side of the lower retaining wall far from the loudspeaker monomer.
Preferably, the top retaining wall is extended to form from the bottom wall into the back cavity；The top retaining wall include with it is described
It loudspeaker monomer spaced first barricade portion and is bent from first barricade portion both ends to the loudspeaker monomer direction
Extend the second barricade portion and third barricade portion, the lower retaining wall include the first side wall abutted with first barricade portion, and
The second sidewall of second barricade portion abutting, the third side wall and the 4th side wall abutted with third barricade portion, it is described
The first side wall, the second sidewall, the 4th side wall and third side wall head and the tail are sequentially connected, wherein the air hole
It is located on the first side wall with the breathable barrier, second barricade portion, third barricade portion, described second side
Wall, the third side wall and the 4th side wall are abutted with the loudspeaker monomer, so that the auxiliary leak covers completely
Cover the leakage channel.
Preferably, the 4th side wall is abutted along the direction of vibration of the loudspeaker monomer with the loudspeaker monomer.
Preferably, the region that the second shell corresponds to the loudspeaker monomer offers through-hole, in the second shell
It is installed with the cover board for covering the through-hole.
Preferably, the second shell is formed with the erecting bed around the through-hole away from the side of the first shell
Rank, the cover board are fixed on the installation step.
Preferably, the breathable barrier and the lower retaining wall injection molding.
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.
Compared with the relevant technologies, loudspeaker enclosure of the invention is by assisting leak that will be packaged in the sound-absorbing in the back cavity
Particle is isolated with the leakage channel, avoid the leakage channel of the loudspeaker monomer blocked by the sound-absorbing particle and
It causes gas pressure leak unsmooth, while increasing the leakage space of the leakage channel, improve sounding reliability；Simultaneously because auxiliary
It helps on the outside of leak and is completely used for encapsulation sound-absorbing particle formation Virtual Sound chamber, for improving the frequency acoustic of the loudspeaker enclosure
Performance effectively increases frequency acoustic performance so that back cavity maximization utilizes, and then reaches and combine leakage most
Bigization and the maximized purpose of Virtual Sound cavity volume.
[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 another angle of loudspeaker enclosure shown in Fig. 1；
Fig. 3 is the structural schematic diagram of first shell in loudspeaker enclosure shown in Fig. 1；
Fig. 4 is the perspective view after the assembling of loudspeaker enclosure sector structure shown in Fig. 1；
Fig. 5 is the perspective view after loudspeaker enclosure shown in Fig. 1 assembles completely；
Fig. 6 is the cut-away view in the direction loudspeaker enclosure A-A shown in Fig. 5；
Fig. 7 is the enlarged drawing of the part a in loudspeaker enclosure shown in Fig. 6.
[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. 7, 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 4 and Figure 6, 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 loudspeaker enclosure 100 further includes top retaining wall 4, lower retaining wall 5 corresponding with top retaining wall 4 and breathable barrier 6, described
A wherein side in top retaining wall 4 and the lower retaining wall 5 extends to form from the bottom wall 11 into the back cavity B, and another party is from institute
It states second shell 2 to extend to form into the back cavity B, air hole 5A, the breathable barrier 6 is offered on the lower retaining wall 5
It is fixedly arranged on the lower retaining wall 5 and covers the air hole 5A, the bottom wall 11, the second shell 2, the top retaining wall 4, institute
It states lower retaining wall 5 and the breathable barrier 6 is enclosed the auxiliary leak with ventilation space C, the top retaining wall 4 and described
Lower retaining wall 5 is abutted with the loudspeaker monomer 3, so that the auxiliary leak is completely covered the leakage channel 3A and makes institute
It states ventilation space C to be connected to the leakage path 3A, the ventilation space C is empty by the breathable barrier 6 and the back cavity B
Gas connection, the auxiliary leak separate the sound-absorbing particle and the leakage path 3A.The loudspeaker monomer 3 vibrates
When, internal air-flow flows into the ventilation space C from the leakage path 3A, then through the breathable barrier 6 from described
Ventilation space C flows to the back cavity B, and airflow direction is as shown by the arrows in Figure 7.Since auxiliary leak will be packaged in the back cavity
Sound-absorbing particle in B is isolated with the leakage channel 3A, and the leakage channel 3A for avoiding the loudspeaker monomer 3 is described
Sound-absorbing particle blocks and causes gas pressure leak unsmooth, while increasing the leakage space of the leakage channel 3A, improves sounding
Reliability；Simultaneously because encapsulation sound-absorbing particle is completely used on the outside of auxiliary leak forms Virtual Sound chamber, it is described for improving
The frequency acoustic performance of loudspeaker enclosure 100 effectively increases frequency acoustic performance so that back cavity B maximization utilizes.
Wherein, the breathable barrier 6 is in non-woven fabrics, nylon mesh grid, wool weaving net, metal mesh and adjustable sound paper
Any one.
In the present embodiment, the air hole 5A is located at side of the lower retaining wall 5 far from the loudspeaker monomer 3.
In the present embodiment, the top retaining wall 4 is extended to form from the bottom wall 11 into the back cavity B；The top retaining wall 4
Including with the 3 spaced first barricade portion 41 of loudspeaker monomer and from first barricade portion, 41 both ends to the loudspeaking
The the second barricade portion 43 and third barricade portion 45 that the bending of 3 direction of device monomer extends；The lower retaining wall 5 includes and first barricade
The first side wall 51 of the abutting of portion 41, the second sidewall 53 abutted with second barricade portion 43 are supported with third barricade portion 45
The third side wall 55 and the 4th side wall 57 connect, the first side wall 51, the second sidewall 53, the 4th side wall 57 and institute
It states 55 head and the tail of third side wall to be sequentially connected, wherein the air hole 16 and the breathable barrier 6 are located at first barricade portion
On 41, second barricade portion 43, third barricade portion 45, the second sidewall 53, the third side wall 55 and described
Four side walls 57 are abutted with the loudspeaker monomer 3, so that the leakage channel 3A is completely covered in the auxiliary leak.
In the present embodiment, the breathable barrier 6 and 5 injection molding of lower retaining wall.
In the present embodiment, direction of vibration and the loudspeaker list of the 4th side wall 57 along the loudspeaker monomer 3
Body 3 abuts.
In the present embodiment, the region of the corresponding loudspeaker monomer 3 of the second shell 2 offers through-hole 21, described
The cover board 23 for covering the through-hole 21 is installed in second shell 2.It in this way can be in order to the 4th side wall 57 and the loudspeaking
Between device monomer 3, gluing sealing.
In the present embodiment, the second shell 2 is formed with away from the side of the first shell 1 around the through-hole 21
Installation step 25, the cover board 23 is fixed on the installation step 25.
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.The sound of the loudspeaker monomer 3 can be improved in this way
Flatten the reliability of weighing apparatus.
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 4 and Figure 6.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 7 that the first shell 1 is arranged and consolidating
Due to the first shell 1 and lid sets the sealing cover 8 in the powder filling hole 7, and the powder filling hole 7 is connected to the back cavity B, the suction
Sound particle pours into the back cavity B by the powder filling hole 7.Certainly, in other embodiments, the powder filling hole and the sealing cover
It can be set in the second shell 2.
Compared with the relevant technologies, loudspeaker enclosure of the invention is by assisting leak that will be packaged in the suction in the back cavity B
Sound particle is isolated with the leakage channel 3A, avoids the leakage channel 3A of the loudspeaker monomer 3 by the sound-absorbing
Grain blocks and causes gas pressure leak unsmooth, while increasing the leakage space of the leakage channel 3A, improves sounding reliability；
Simultaneously because being completely used for encapsulation sound-absorbing particle on the outside of auxiliary leak forms Virtual Sound chamber, for improving the loudspeaker enclosure
100 frequency acoustic performance effectively increases frequency acoustic performance so that back cavity B maximization utilizes.
Above-described is only embodiments of the present invention, it should be noted here that for those of ordinary skill in the art
For, without departing from the concept of the premise of the invention, improvement can also be made, but these belong to protection model of the invention
It encloses.
Claims (11)
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, which is characterized in that the loudspeaker enclosure further includes top retaining wall, lower retaining wall corresponding with the top retaining wall and ventilative isolation
Part, the wherein side in the top retaining wall and the lower retaining wall extend to form from the bottom wall into the back cavity, another party from
The second shell is extended to form into the back cavity, and air hole is offered on the lower retaining wall, and the breathable barrier is fixed
In on the lower retaining wall and covering the air hole, the bottom wall, the second shell, the top retaining wall, the lower retaining wall and
The breathable barrier is enclosed the auxiliary leak with ventilation space, and the top retaining wall and the lower retaining wall are raised with described
Sound device monomer abuts, so that the auxiliary leak is completely covered the leakage channel and lets out the ventilation space with described
Channel connection is leaked, the ventilation space will by the breathable barrier and the back cavity air communication, the auxiliary leak
The sound-absorbing particle and the leakage path separate.
2. loudspeaker enclosure according to claim 1, which is characterized in that the air hole is located at the lower retaining wall far from described
The side of loudspeaker monomer.
3. loudspeaker enclosure according to claim 2, which is characterized in that the top retaining wall is from the bottom wall into the back cavity
It extends to form；The top retaining wall includes with the loudspeaker monomer spaced first barricade portion and from first barricade portion
Both ends to the loudspeaker monomer direction bending extend the second barricade portion and third barricade portion, the lower retaining wall include with it is described
The first side wall of first barricade portion abutting, the second sidewall abutted with second barricade portion are abutted with third barricade portion
Third side wall and the 4th side wall, the first side wall, the second sidewall, the 4th side wall and the third side wall are first
Tail is sequentially connected, wherein and the air hole and the breathable barrier are located on the first side wall, second barricade portion,
Third barricade portion, the second sidewall, the third side wall and the 4th side wall are abutted with the loudspeaker monomer, with
So that the leakage channel is completely covered in the auxiliary leak.
4. loudspeaker enclosure according to claim 3, which is characterized in that vibration of the 4th side wall along the loudspeaker monomer
Dynamic direction is abutted with the loudspeaker monomer.
5. loudspeaker enclosure according to claim 4, which is characterized in that the second shell corresponds to the loudspeaker monomer
Region offers through-hole, and the cover board for covering the through-hole is installed in the second shell.
6. loudspeaker enclosure according to claim 5, which is characterized in that the second shell deviates from the one of the first shell
Side is formed with the installation step around the through-hole, and the cover board is fixed on the installation step.
7. loudspeaker enclosure according to claim 1, which is characterized in that the breathable barrier is molded into the lower retaining wall
Type.
8. 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.
9. loudspeaker enclosure according to claim 8, 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.
10. loudspeaker enclosure according to claim 1, which is characterized in that the loudspeaker monomer includes being supported in the bottom
The frame of wall 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
The frame side wall forms the leakage path along direction of vibration interval.
11. loudspeaker enclosure according to claim 1, which is characterized in that the loudspeaker enclosure further includes through described first
The powder filling hole of shell setting and be fixed on the first shell and lid sets the sealing cover in the powder filling hole, the powder filling hole with it is described
Back cavity connection, the sound-absorbing particle pour into the back cavity by the powder filling hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811650385.0A CN109788396A (en) | 2018-12-31 | 2018-12-31 | Loudspeaker enclosure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811650385.0A CN109788396A (en) | 2018-12-31 | 2018-12-31 | Loudspeaker enclosure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109788396A true CN109788396A (en) | 2019-05-21 |
Family
ID=66499012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811650385.0A Pending CN109788396A (en) | 2018-12-31 | 2018-12-31 | Loudspeaker enclosure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109788396A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022006961A1 (en) * | 2020-07-08 | 2022-01-13 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
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| CN108462906A (en) * | 2018-01-05 | 2018-08-28 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN207869352U (en) * | 2018-01-29 | 2018-09-14 | 瑞声科技(新加坡)有限公司 | Microphone device |
| CN108989944A (en) * | 2018-08-03 | 2018-12-11 | 瑞声光电科技(常州)有限公司 | Loudspeaker enclosure |
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2018
- 2018-12-31 CN CN201811650385.0A patent/CN109788396A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206433106U (en) * | 2017-01-12 | 2017-08-22 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| WO2018131808A1 (en) * | 2017-01-16 | 2018-07-19 | 주식회사 이어브릿지 | High-quality electromagnetic speaker having improved accuracy of air gap |
| CN207251897U (en) * | 2017-08-21 | 2018-04-17 | 瑞声科技(新加坡)有限公司 | Microphone device |
| CN108462906A (en) * | 2018-01-05 | 2018-08-28 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN207869352U (en) * | 2018-01-29 | 2018-09-14 | 瑞声科技(新加坡)有限公司 | Microphone device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022006961A1 (en) * | 2020-07-08 | 2022-01-13 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
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Application publication date: 20190521 |