CN109495828A - Loudspeaker enclosure - Google Patents
Loudspeaker enclosure Download PDFInfo
- Publication number
- CN109495828A CN109495828A CN201811650395.4A CN201811650395A CN109495828A CN 109495828 A CN109495828 A CN 109495828A CN 201811650395 A CN201811650395 A CN 201811650395A CN 109495828 A CN109495828 A CN 109495828A
- Authority
- CN
- China
- Prior art keywords
- loudspeaker
- shell
- side wall
- loudspeaker monomer
- bottom wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
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 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, bottom wall is intracavitary backward to have extended to form bracket, bracket includes roof, side wall and air hole, the breathable barrier of covering air hole is installed on roof, bottom wall, roof, side wall and breathable barrier are enclosed the auxiliary leak with ventilation space, auxiliary leak is completely covered leakage channel and is connected to ventilation space with leakage path, ventilation space is with after Chamber 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 blocks powder as volume, and by screen cloth
Grain, which enters in monomer, leads to noise；
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 hot melt barricade, greatly improve volume, but back cavity volume cannot have completely
Effect utilizes.That is, above-mentioned three kinds of schemes can not combine, leakage is maximized and Virtual Sound cavity volume maximizes.
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 bottom wall has extended to form bracket, the branch into the back cavity
Frame includes with the spaced roof of the bottom wall, connect the side wall of the roof and the bottom wall and through the roof
Air hole is installed with the breathable barrier for covering the air hole, the bottom wall, the roof, the side wall on the roof
And the breathable barrier is enclosed the auxiliary leak with ventilation space, the roof and the side wall and the loudspeaking
Device monomer abuts, so that the auxiliary leak is completely covered the leakage channel and makes the ventilation space and the leakage
Channel connection, the ventilation space is by the breathable barrier and the back cavity air communication, and the auxiliary leak is by institute
It states sound-absorbing particle and the leakage path separates.
Preferably, the side wall includes with the spaced the first side wall of the loudspeaker monomer and from the first side wall
The second sidewall and third side wall that both ends extend to loudspeaker monomer direction bending, the second sidewall, the third side
Wall and the roof are abutted with the loudspeaker monomer, so that the leakage channel is completely covered in the auxiliary leak.
Preferably, one end that the second sidewall and the third side wall are connected to the loudspeaker monomer is higher than described the
Two side walls and the third side wall are connected to one end of the first side wall.
Preferably, the breathable barrier and the bracket injection molding.
Preferably, the position that the bottom wall corresponds to the ventilation space offers through-hole, and the first shell further includes solid
On the bottom wall and cover the cover board of the through-hole.
Preferably, the installation step around the through-hole is additionally provided on the bottom wall, the installation step is away from described
Headroom, the cover board are fixed on the installation step.
Preferably, the cover board includes the main part to match with the shape of through holes size and from the main part periphery
The edge part extended to form, the edge part are fixed on the installation step.
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 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.
Compared with the relevant technologies, loudspeaker enclosure of the invention passes through the bottom wall, the roof, the side wall and described
The auxiliary leak that air bound off member is enclosed is isolated by the sound-absorbing particle being packaged in the back cavity with the leakage channel, is kept away
The leakage channel for having exempted from the loudspeaker monomer is blocked by the sound-absorbing particle and causes gas pressure leak unsmooth, increases simultaneously
The leakage space of the leakage channel, improves sounding reliability；Simultaneously because being completely used for sealing on the outside of auxiliary leak
It fills sound-absorbing particle and forms Virtual Sound chamber, for improving the frequency acoustic performance of the loudspeaker enclosure, so that the back cavity pole
Bigization utilizes, and effectively increases frequency acoustic performance, and then reaches and combine leakage maximization and Virtual Sound cavity volume maximum
The purpose of change.
[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.
Bracket 13 of the bottom wall 11 into the back cavity B, the bracket 13 include spaced with the bottom wall 11
The air hole 135 of roof 131, the connection roof 131 with the side wall 133 of the bottom wall 11 and through the roof 131, institute
State the breathable barrier 14 for being installed on roof 131 and covering the air hole 135, it is the bottom wall 11, the roof 131, described
Side wall 133 and the breathable barrier 14 are enclosed the auxiliary leak with ventilation space 15, the roof 131 and described
Side wall 133 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 15 to be connected to the leakage path 3A, the ventilation space 15 passes through the breathable barrier 14 and the back cavity
B air communication, the auxiliary leak separate the sound-absorbing particle and the leakage path 3A.The loudspeaker monomer 3 shakes
When dynamic, internal air-flow flows into the ventilation space 15 from the leakage path 3A, then through the breathable barrier 14 from
The ventilation space 15 flows to the back cavity B, and airflow direction is as shown by the arrows in Figure 7.Due to the bottom wall 11, the roof
131, the auxiliary leak that the side wall 133 and the breathable barrier 14 are enclosed 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.
Wherein, the breathable barrier 14 is in non-woven fabrics, nylon mesh grid, wool weaving net, metal mesh and adjustable sound paper
Any one.
In the present embodiment, the side wall 133 include with the spaced the first side wall 136 of the loudspeaker monomer 3 and
The second sidewall 137 and third side wall 138 that bending extends from 136 both ends of the first side wall to 3 direction of loudspeaker monomer,
The second sidewall 137, the third side wall 138 and the roof 131 are abutted with the loudspeaker monomer 3, so that described
The leakage channel 3A is completely covered in auxiliary leak.
Further, the second sidewall 137 and the third side wall 138 are connected to one end of the loudspeaker monomer 3
Higher than one end that the second sidewall 137 and the third side wall 138 are connected to the first side wall 136.It can make in this way
The breathable barrier 14 is obliquely installed, and is flowed so as to increase air-flow through the breathable barrier 14 from the ventilation space 15
Leakage space when to the back cavity B.
The breathable barrier 14 can also pass through hot melt or dispensing or gum side with the bracket 13 with injection molding
Formula is fixed.In the present embodiment, the breathable barrier 14 and 13 injection molding of bracket.Injection molding can guarantee described
Bonding strength between breathable barrier 14 and the bracket 13.
Further, the position of the corresponding ventilation space 15 of the bottom wall 11 offers through-hole 17, the first shell 1
It further include the cover board 19 for being fixedly arranged on the bottom wall 11 and covering the through-hole 17.The setting of the through-hole 17 and the cover board 19
It can be in order to the breathable barrier 14 and 13 injection molding of bracket.
In the present embodiment, the installation step 111 around the through-hole 17, the erecting bed are additionally provided on the bottom wall 11
Rank 111 deviates from the ventilation space 15, and the cover board 19 is fixed on the installation step 111.
In the present embodiment, the cover board 19 include the main part 191 to match with 17 shape size of through-hole and from
The edge part 193 that 191 periphery of main part extends to form, the edge part 193 are fixed on the installation step 111.
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 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.
Compared with the relevant technologies, loudspeaker enclosure of the invention passes through the bottom wall 11, the roof 131, the side wall 133
And the auxiliary leak that the breathable barrier 14 is enclosed will be packaged in the sound-absorbing particle in the back cavity B and the leakage
Channel 3A isolation, the leakage channel 3A for avoiding the loudspeaker monomer 3 are blocked by the sound-absorbing particle and are caused air pressure
Leakage space that is unsmooth, while increasing the leakage channel 3A is leaked, sounding reliability is improved；Simultaneously because auxiliary leakage
It is completely used for encapsulation sound-absorbing particle on the outside of portion and forms Virtual Sound chamber, for improving the frequency acoustic of the loudspeaker enclosure 100
Can, so that back cavity B maximization utilizes, effectively increase frequency acoustic performance.
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 bottom wall has extended to form bracket into the back cavity, and the bracket includes and the bottom wall interval
The roof of setting, the side wall of the connection roof and the bottom wall and the air hole through the roof, it is solid on the roof
Equipped with the breathable barrier for covering the air hole, the bottom wall, the roof, the side wall and the breathable barrier are enclosed
The auxiliary leak with ventilation space is formed, the roof and the side wall are abutted with the loudspeaker monomer, so that institute
It states auxiliary leak the leakage channel is completely covered and is connected to the ventilation space with the leakage path, the ventilative sky
Between by the breathable barrier and the back cavity air communication, the auxiliary leak is by the sound-absorbing particle and the leakage
Channel partition.
2. loudspeaker enclosure according to claim 1, which is characterized in that the side wall includes and the loudspeaker monomer interval
The first side wall of setting and the second sidewall and that bending extends from the first side wall both ends to the loudspeaker monomer direction
Three side walls, the second sidewall, the third side wall and the roof are abutted with the loudspeaker monomer, so that the auxiliary
The leakage channel is completely covered in leak.
3. loudspeaker enclosure according to claim 2, which is characterized in that the second sidewall and the third side wall are connected to
One end of the loudspeaker monomer is higher than the second sidewall and the third side wall is connected to one end of the first side wall.
4. loudspeaker enclosure according to claim 1, which is characterized in that the breathable barrier is molded into the bracket
Type.
5. loudspeaker enclosure according to claim 4, which is characterized in that open the position that the bottom wall corresponds to the ventilation space
Equipped with through-hole, the first shell further includes the cover board for being fixedly arranged on the bottom wall and covering the through-hole.
6. loudspeaker enclosure according to claim 5, which is characterized in that be additionally provided with the peace around the through-hole on the bottom wall
Step is filled, the installation step deviates from the ventilation space, and the cover board is fixed on the installation step.
7. loudspeaker enclosure according to claim 6, which is characterized in that the cover board includes and the shape of through holes size phase
Matched main part and from the edge part that the main part periphery extends to form, the edge part is fixed on the installation step
On.
8. 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.
9. 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.
10. loudspeaker enclosure according to claim 1 to 9, which is characterized in that the two-phase of the loudspeaker monomer
Opposite side is respectively equipped with the leakage path, and the auxiliary leak sets there are two and is connected to respectively with two leakage paths.
11. loudspeaker enclosure according to claim 10, which is characterized in that the loudspeaker monomer is in rectangle, described in two
Leakage path is located at loudspeaker monomer short axle two opposite sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811650395.4A CN109495828A (en) | 2018-12-31 | 2018-12-31 | Loudspeaker enclosure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811650395.4A CN109495828A (en) | 2018-12-31 | 2018-12-31 | Loudspeaker enclosure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109495828A true CN109495828A (en) | 2019-03-19 |
Family
ID=65712107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811650395.4A Pending CN109495828A (en) | 2018-12-31 | 2018-12-31 | Loudspeaker enclosure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109495828A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111163406A (en) * | 2019-12-30 | 2020-05-15 | 歌尔股份有限公司 | Sound production device and speaker module |
| CN111405432A (en) * | 2019-12-24 | 2020-07-10 | 瑞声科技(新加坡)有限公司 | Loudspeaker box |
| CN112153500A (en) * | 2020-08-27 | 2020-12-29 | 瑞声新能源发展(常州)有限公司科教城分公司 | Loudspeaker box |
| CN112153501A (en) * | 2020-08-27 | 2020-12-29 | 瑞声新能源发展(常州)有限公司科教城分公司 | Loudspeaker box |
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| CN206433106U (en) * | 2017-01-12 | 2017-08-22 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111405432A (en) * | 2019-12-24 | 2020-07-10 | 瑞声科技(新加坡)有限公司 | Loudspeaker box |
| CN111405432B (en) * | 2019-12-24 | 2021-06-15 | 瑞声科技(新加坡)有限公司 | Loudspeaker box |
| CN111163406A (en) * | 2019-12-30 | 2020-05-15 | 歌尔股份有限公司 | Sound production device and speaker module |
| CN112153500A (en) * | 2020-08-27 | 2020-12-29 | 瑞声新能源发展(常州)有限公司科教城分公司 | Loudspeaker box |
| CN112153501A (en) * | 2020-08-27 | 2020-12-29 | 瑞声新能源发展(常州)有限公司科教城分公司 | Loudspeaker box |
| CN112153501B (en) * | 2020-08-27 | 2024-04-02 | 瑞声新能源发展(常州)有限公司科教城分公司 | Loudspeaker box |
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Application publication date: 20190319 |