CN109788413A - Loudspeaker enclosure - Google Patents
Loudspeaker enclosure Download PDFInfo
- Publication number
- CN109788413A CN109788413A CN201811650396.9A CN201811650396A CN109788413A CN 109788413 A CN109788413 A CN 109788413A CN 201811650396 A CN201811650396 A CN 201811650396A CN 109788413 A CN109788413 A CN 109788413A
- Authority
- CN
- China
- Prior art keywords
- loudspeaker
- shell
- back cavity
- convex block
- side 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
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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 the leakage channel for being connected to its inner space with back cavity, loudspeaker monomer has side, leakage channel is revealed from side, the convex block around leakage channel is formed on loudspeaker monomer, convex block is annular in shape and is located in back cavity, loudspeaker enclosure further includes the auxiliary leak with ventilation space in back cavity, open at one end and its open end of auxiliary leak is set on convex block and seals with convex block, so that ventilation space and leakage channel are connected to and auxiliary leak separates sound-absorbing particle and leakage path, wherein, ventilation space and rear cavity space Gas connection.Compared with the relevant technologies, 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 material 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, which can be generated, leads to asking for audio performance loss because monomer leak outlet is unsmooth
Topic；Although plate scheme reduces volume occupied by the virtual operatic tunes barricade of hot melt, greatly improve Virtual Sound cavity volume, but back cavity
Volume fully effective cannot utilize.That is, above-mentioned three kinds of schemes can not combine leakage maximization and Virtual Sound cavity
Product maximizes.
Therefore, a kind of new loudspeaker enclosure solution above-mentioned technical problem must be provided by having in fact.
[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 have side, the leakage channel is revealed from the side, on the loudspeaker monomer
It is formed with the convex block around the leakage channel, the convex block is annular in shape and is located in the back cavity, and the loudspeaker enclosure also wraps
Include the auxiliary leak with ventilation space being set in the back cavity, open at one end and its open end of the auxiliary leak
It is set on the convex block and is sealed with the convex block, so that the ventilation space is connected to and described auxiliary with the leakage channel
Leak is helped to separate the sound-absorbing particle and the leakage path, wherein the ventilation space and the back cavity air communication.
Preferably, the auxiliary leak includes being set on the convex block and with the bracket of convex block sealing and thoroughly
Air bound off member, air hole is offered on the bracket, and the breathable barrier is fixedly arranged on the bracket and covers described ventilative
Hole, wherein the bracket is enclosed the ventilation space with the breathable barrier and lets out the sound-absorbing particle with described
Channel partition is leaked, the ventilation space passes through the breathable barrier and the back cavity air communication.
Preferably, the bracket includes the socket part being set on the convex block and the spaced gear in the socket part
Plate and the side wall of the connection socket part and the baffle, the air hole are opened on the side wall.
Preferably, the side wall is arranged with the first shell and the second shell interval respectively along direction of vibration,
And two opposite sides of the side wall on direction of vibration are respectively equipped with the air hole.
Preferably, the breathable barrier is in the cyclic structure around the side wall.
Preferably, the breathable barrier and the bracket injection molding, alternatively, the breathable barrier and the bracket
It is fixed by hot melt or dispensing or gum mode.
Preferably, the two opposite sides of the loudspeaker monomer are respectively equipped with the leakage path, there are two the convex block is set
And respectively around two leakage paths, the auxiliary leak sets there are two and is sheathed on two convex blocks respectively.
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 and extremely for being supported in the first shell
Small part is 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 with
The leakage path is formed, the convex block is formed on the frame side wall and abuts with the magnetic yoke.
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 will be packaged in the back cavity by the auxiliary leak
The sound-absorbing particle is isolated with the leakage channel, avoids the leakage channel of the loudspeaker monomer by the sound-absorbing
Grain blocks and causes gas pressure leak unsmooth, while increasing the leakage space of the leakage channel, improves sounding reliability；Together
When due to auxiliary leak on the outside of be completely used for encapsulation sound-absorbing particle formed Virtual Sound chamber, for improving the loudspeaker enclosure
Frequency acoustic performance effectively increases frequency acoustic performance so that back cavity maximization utilizes.
[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 bracket 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；
Fig. 7 is the cut-away view in the direction loudspeaker enclosure B-B shown in Fig. 4.
[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 loudspeaker monomer 3 is equipped with the leakage channel 3A for being connected to its inner space with the back cavity B, the loudspeaking
Convex block 3B, the convex block 3B around the leakage channel 3A are formed on device monomer 3 annularly and in the back cavity B,
Wherein, the leakage channel 3A is sent to the back cavity B for acoustic pressure to increase the frequency acoustic performance of loudspeaker enclosure；It is described to raise
Sound device monomer 3 has side, and the leakage channel 3A is revealed from the side.
Specifically, the loudspeaker monomer 3 includes the basin surrounded by frame side wall 311 for being supported in the first shell 1
Frame 31 and the magnetic yoke 33 for being at least partly fixed on the frame side wall 311, the magnetic yoke 33 at least partly with the frame side wall
311 along direction of vibration interval to form the leakage path 3A so that the leakage channel 3A is revealed from the side, institute
Convex block 3B is stated to be formed on the frame side wall 311 and abut with the magnetic yoke 33.As shown in Figure 3 and Figure 5, the direction of vibration
For Z-direction, the leakage direction of the leakage channel 3A is X-direction.Certainly, in other embodiments, the leakage channel
The leakage direction of 3A can also be Y direction.Certainly, in other embodiments, the leakage channel can also be located at the basin
On frame side wall.
The loudspeaker enclosure 100 further includes the auxiliary leak 4 with ventilation space 4A in the back cavity B, institute
Open at one end and its open end for stating auxiliary leak 4 is set on the convex block 3B and seals with the convex block 3B, so that
The ventilation space 4A and leakage channel 3A is connected to and the auxiliary leak 4 is logical by the sound-absorbing particle and the leakage
Road 3A separates, wherein the ventilation space 4A and the back cavity B air communication.Since the auxiliary leak 4 will be packaged in institute
The sound-absorbing particle stated in back cavity B is isolated with the leakage channel 3A, and the leakage for avoiding the loudspeaker monomer 3 is logical
Road 3A is blocked by the sound-absorbing particle and is caused gas pressure leak unsmooth, while increasing the leakage space of the leakage channel 3A,
Improve sounding reliability；Simultaneously because the outside of auxiliary leak 4, which is completely used for encapsulation sound-absorbing particle, forms Virtual Sound chamber, use
It is effectively increased low in the frequency acoustic performance for improving the loudspeaker enclosure 100 so that back cavity B maximization utilizes
Frequency acoustical behavior.
Specifically, the auxiliary leak 4 includes the bracket for being set on the convex block 3B and sealing with the convex block 3B
41 and breathable barrier 43, air hole 45 is offered on the bracket 41, and the breathable barrier 43 is fixedly arranged on the bracket
On 41 and cover the air hole 45.Wherein, the bracket 41 is enclosed the ventilation space with the breathable barrier 43
4A simultaneously separates the sound-absorbing particle and the leakage path 3A, and the ventilation space 4A passes through the breathable barrier 43 and institute
State back cavity B air communication.
Wherein, the breathable barrier 43 is in non-woven fabrics, nylon mesh grid, wool weaving net, metal mesh and adjustable sound paper
Any one；
In this embodiment, the bracket 41 includes the socket part 411 being set on the convex block 3B and the socket
The spaced baffle 413 in portion 411 and the side wall 415 of the connection socket part 411 and the baffle 413, the air hole 45
It is opened on the side wall 415.
In this embodiment, the side wall 415 along direction of vibration respectively with the first shell 1 and the second shell
The setting of the interval of body 2, and two opposite sides of the side wall 415 on direction of vibration are respectively equipped with the air hole 45.The loudspeaking
When device monomer 3 vibrates, internal air-flow flows into the ventilation space 4A from the leakage path 3A, then through it is described it is ventilative every
Off member 43 flows to the back cavity B from the ventilation space 4A, and airflow direction is as shown by the arrows in Figure 6.
In this embodiment, the breathable barrier 43 is in the cyclic structure around the side wall 415.
In this embodiment, the breathable barrier 43 and 41 injection molding of bracket, alternatively, the ventilative isolation
Part 43 is fixed with the bracket 41 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 convex block
There are two 3B is set and respectively around two leakage path 3A, the auxiliary leak 4 sets there are two and is sheathed on two respectively
On a convex block 3B.The reliability of the sound pressure equalisation of the loudspeaker monomer 3 can be improved in this way.
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.
Compared with the relevant technologies, loudspeaker enclosure of the invention will be packaged in the back cavity B by the auxiliary leak 4
The sound-absorbing particle be isolated with the leakage channel 3A, avoid the leakage channel 3A of the loudspeaker monomer 3 by institute
It states the blocking of sound-absorbing particle and causes gas pressure leak unsmooth, while increasing the leakage space of the leakage channel 3A, improve hair
Sound reliability；Simultaneously because the outside of auxiliary leak 4, which is completely used for encapsulation sound-absorbing particle, forms Virtual Sound chamber, for improving
The frequency acoustic performance of loudspeaker enclosure 100 is stated, so that back cavity B maximization utilizes, effectively increases frequency acoustic
Energy.
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 (10)
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, which is characterized in that are formed on the loudspeaker monomer logical around the leakage
The convex block in road, the convex block is annular in shape and is located in the back cavity, and the loudspeaker enclosure further includes the tool in the back cavity
Have an auxiliary leak of ventilation space, open at one end and its open end of the auxiliary leak be set on the convex block and with
Convex block sealing, so that the ventilation space is connected to the leakage channel and the auxiliary leak is by the sound-absorbing
Grain separates with the leakage path, wherein the ventilation space and the back cavity air communication.
2. loudspeaker enclosure according to claim 1, which is characterized in that the auxiliary leak includes being set in the convex block
Bracket and breathable barrier upper and with convex block sealing offer air hole, the breathable barrier on the bracket
It is fixedly arranged on the bracket and covers the air hole, wherein the bracket is enclosed described with the breathable barrier
Headroom simultaneously separates the sound-absorbing particle and the leakage path, the ventilation space by the breathable barrier with it is described
Back cavity air communication.
3. loudspeaker enclosure according to claim 2, which is characterized in that the bracket includes the set being set on the convex block
Socket part with the spaced baffle in the socket part and connect the side wall of the socket part and the baffle, and the air hole is opened
On the side wall.
4. loudspeaker enclosure according to claim 3, which is characterized in that the side wall is along direction of vibration respectively with described
One shell and second shell interval setting, and two opposite sides of the side wall on direction of vibration are respectively equipped with described breathe freely
Hole.
5. loudspeaker enclosure according to claim 4, which is characterized in that the breathable barrier is in the ring around the side wall
Shape structure.
6. loudspeaker enclosure according to claim 2, which is characterized in that the breathable barrier is molded into the bracket
Type, alternatively, the breathable barrier is fixed with the bracket by hot melt or dispensing or gum mode.
7. 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 convex block set there are two and surround two leakage paths respectively, and the auxiliary leak is equipped with two
It is a and be sheathed on two convex blocks respectively.
8. loudspeaker enclosure according to claim 7, 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.
9. loudspeaker enclosure according to claim 1, which is characterized in that the loudspeaker monomer includes being supported in described first
The frame of shell surrounded by frame side wall and the magnetic yoke for being at least partly fixed on the frame side wall, the magnetic yoke is at least partly
The leakage path is formed along direction of vibration interval with the frame side wall, the convex block is formed on the frame side wall simultaneously
It is abutted with the magnetic yoke.
10. 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 |
|---|---|---|---|
| CN201811650396.9A CN109788413A (en) | 2018-12-31 | 2018-12-31 | Loudspeaker enclosure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811650396.9A CN109788413A (en) | 2018-12-31 | 2018-12-31 | Loudspeaker enclosure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109788413A true CN109788413A (en) | 2019-05-21 |
Family
ID=66499669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811650396.9A Pending CN109788413A (en) | 2018-12-31 | 2018-12-31 | Loudspeaker enclosure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109788413A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110381399A (en) * | 2019-06-29 | 2019-10-25 | 瑞声科技(新加坡)有限公司 | A kind of loudspeaker enclosure |
| WO2022006984A1 (en) * | 2020-07-08 | 2022-01-13 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| WO2022183917A1 (en) * | 2021-03-01 | 2022-09-09 | 华为技术有限公司 | Loudspeaker and electronic device |
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| CN108235198A (en) * | 2018-02-24 | 2018-06-29 | 歌尔股份有限公司 | A kind of loud speaker module and electronic equipment |
| WO2018131808A1 (en) * | 2017-01-16 | 2018-07-19 | 주식회사 이어브릿지 | High-quality electromagnetic speaker having improved accuracy of air gap |
| 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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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 |
| CN108235198A (en) * | 2018-02-24 | 2018-06-29 | 歌尔股份有限公司 | A kind of loud speaker module and electronic equipment |
| CN108989944A (en) * | 2018-08-03 | 2018-12-11 | 瑞声光电科技(常州)有限公司 | Loudspeaker enclosure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110381399A (en) * | 2019-06-29 | 2019-10-25 | 瑞声科技(新加坡)有限公司 | A kind of loudspeaker enclosure |
| CN110381399B (en) * | 2019-06-29 | 2021-03-23 | 瑞声科技(新加坡)有限公司 | Loudspeaker box |
| WO2022006984A1 (en) * | 2020-07-08 | 2022-01-13 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| WO2022183917A1 (en) * | 2021-03-01 | 2022-09-09 | 华为技术有限公司 | Loudspeaker and electronic device |
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Application publication date: 20190521 |