CN208638528U - Loudspeaker enclosure - Google Patents
Loudspeaker enclosure Download PDFInfo
- Publication number
- CN208638528U CN208638528U CN201821263172.8U CN201821263172U CN208638528U CN 208638528 U CN208638528 U CN 208638528U CN 201821263172 U CN201821263172 U CN 201821263172U CN 208638528 U CN208638528 U CN 208638528U
- Authority
- CN
- China
- Prior art keywords
- accommodating space
- shell
- back cavity
- loudspeaker enclosure
- fretting map
- 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.)
- Expired - Fee Related
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- Diaphragms For Electromechanical Transducers (AREA)
Abstract
The utility model provides a kind of loudspeaker enclosure, including with accommodating space shell, the sounding monomer that is contained in the accommodating space and be formed in the accommodating space and lead sound channel, the preceding operatic tunes is in communication with the outside and ante-chamber is collectively formed with the preceding operatic tunes by the operatic tunes and back cavity, the sound channel of leading before the accommodating space is separated by the sounding monomer；The part that the medial surface of the shell corresponds to the back cavity is equipped with one layer of fretting map layer with multiple holes, and the fretting map layer takes shape in the inside of the shell by micro foaming injection moulding technique two-shot process.Compared with the relevant technologies, the loudspeaker enclosure acoustical behavior of the utility model is good, high production efficiency and applicability are wide.
Description
[technical field]
The utility model 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.
The loudspeaker enclosure of the relevant technologies includes the shell with accommodating space, is contained in the intracorporal sounding list of the shell
Body and be formed in the accommodating space and lead sound channel, before the accommodating space is separated by the sounding monomer operatic tunes and
The preceding operatic tunes is in communication with the outside and collectively forms the ante-chamber with the preceding operatic tunes by back cavity, the sound channel of leading；After described
Intracavitary filling acoustical cotton or sound-absorbing particle are to form microcellular structure, to form the virtual operatic tunes (space DBASS) described in improvement
The frequency acoustic performance of loudspeaker enclosure.
However, it is micro- to be formed by filling sound-absorbing material for forming the virtual operatic tunes in the loudspeaker enclosure of the relevant technologies
Pore structure, and then form the virtual operatic tunes.Because being limited by the space size for the sound-absorbing material and filling filled, back cavity needs the structure
Relatively regular shape is kept, using limited；And need to assemble from back cavity when sound-absorbing material filling, assembly process is complicated, and production is imitated
Rate is low.
Therefore, it is really necessary to provide a kind of new loudspeaker enclosure solution above-mentioned technical problem.
[utility model content]
Good, high production efficiency that the purpose of this utility model is to provide a kind of acoustical behavioies and the wide loudspeaker of applicability
Case.
In order to achieve the above object, the utility model provides a kind of loudspeaker enclosure, including with accommodating space shell,
It the sounding monomer that is contained in the accommodating space and is formed in the accommodating space and leads sound channel, the sounding monomer
The operatic tunes and back cavity before the accommodating space is separated into, it is described lead sound channel by the preceding operatic tunes be in communication with the outside and with it is described before
Ante-chamber is collectively formed in the operatic tunes；The part that the medial surface of the shell corresponds to the back cavity is equipped with one layer of micro- hair with multiple holes
Alveolar layer, the fretting map layer take shape in the inside of the shell by micro foaming injection moulding technique two-shot process.
Preferably, the shell is structure as a whole with the fretting map layer.
Preferably, it is the aperture knot with multiple described holes that the medial surface of the shell, which corresponds to the part of the back cavity,
Structure.
Preferably, the shell includes upper cover and is covered on the upper cover and surrounds the lower cover of the accommodating space jointly,
The sounding monomer and the upper cover interval form the preceding operatic tunes, and the sound channel of leading is formed in the upper cover, the sounding
Monomer and the upper cover and the lower cover surround the back cavity jointly；The side close to the accommodating space of the upper cover is right
The part of the back cavity is answered to be equipped with the fretting map layer.
Preferably, the part of the back cavity corresponding to the side of the close accommodating space of the lower cover is equipped with described micro-
Foaming layer.
Preferably, multiple described holes of the fretting map layer are arranged in array.
Compared with the relevant technologies, the loudspeaker enclosure of the utility model passes through micro foaming injection moulding technique two-shot process
The part for making the medial surface of the shell correspond to the back cavity forms one layer of fretting map layer with multiple described holes, to make
Back cavity forms the virtual operatic tunes of DBASS, and when secondary injection molding is limited small by space, is suitable for shell of different shapes, so that
The loudspeaker enclosure is applied widely；And the position of the fretting map layer mould filling, volume and hole it is adjustable, more
The acoustics of the improvement loudspeaker enclosure of big degree debugs performance；In addition, the shell is integrally formed with the fretting map layer,
Conformity of production is good, saves filling work procedure, to effectively increase production efficiency.
[Detailed description of the invention]
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings, in which:
Fig. 1 is the schematic perspective view of the utility model loudspeaker enclosure；
Fig. 2 is the part isometric structural exploded view of the utility model loudspeaker enclosure；
Fig. 3 is the line A-A cross-sectional view along Fig. 1.
[specific embodiment]
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
All other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1-3, the utility model provides a kind of loudspeaker enclosure 100, including shell 1, sounding monomer 2,
Lead sound channel 3 and fretting map layer 4.
The shell 1 has accommodating space 10.The shell 1 can be structure as a whole, or separate structure, for example,
In present embodiment, the shell 1 include lower cover 11, it is described cover to merge with the lower cover 11 surround the accommodating space 10 jointly
Upper cover 12.
The sounding monomer 2 is contained in the accommodating space 10 of the shell 1, and the sounding monomer 2 is by institute
State the operatic tunes 5 and back cavity 101 before accommodating space 10 is separated into.
In present embodiment, the sounding monomer 2 includes the vibrating diaphragm 21 for vibration sounding, and the vibrating diaphragm 21 is by the receipts
Hold space 10 and is divided into the preceding operatic tunes 5 and the back cavity 101.Specifically, the vibrating diaphragm 21 is arranged with the upper cover 12 interval
The preceding operatic tunes 5 is surrounded jointly；The vibrating diaphragm 21 surrounds the back cavity 101 with the upper cover 12 and the lower cover 11 jointly.Institute
Back cavity 101 is stated for improving the frequency acoustic performance of the loudspeaker enclosure 100.
The sound channel 3 of leading is formed in the accommodating space 10 of the shell 1, described to lead sound in present embodiment
Channel 3 is formed in the upper cover 12.The preceding operatic tunes 5 is in communication with the outside and common with the preceding operatic tunes 5 by the sound channel 3 of leading
Surround ante-chamber 102.The ante-chamber 102 is used to form side vocal structure.
The fretting map layer 4 is set to the part that 1 medial surface of shell corresponds to the back cavity 101.The fretting map layer 4
With multiple holes 41.Because having multiple holes 41 on the fretting map layer 4, the structure with sound absorption function, the structure are formed
The virtual operatic tunes of DBASS is formed in the back cavity 101, is effectively increased route of transmission of the sound wave in the back cavity 101, from
And improve the frequency acoustic performance of the loudspeaker enclosure 100.
In present embodiment, multiple described holes 41 are arranged in array, certainly only a kind of citing, arrangement side without being limited thereto
Formula.
Specifically, in present embodiment, it is described corresponding to the side of the close accommodating space 10 of the upper cover 12
The part of back cavity 101 is equipped with the fretting map layer 4.
The part of the back cavity 101 corresponding to the side of the close accommodating space 10 of the lower cover 11 is equipped with described micro-
Foaming layer 4.
In present embodiment, the fretting map layer 4 is formed by micro foaming injection moulding technique two-shot process.This is micro-
It is limited by space small when 4 secondary injection molding of foaming layer, is suitable for shell of different shapes, so that the loudspeaker enclosure 100 is suitable
It is wide with range.And the position of 4 mould filling of fretting map layer, volume and hole it is adjustable, it is a greater degree of to improve
The frequency acoustic of the loudspeaker enclosure 100 debugs performance.
More preferably, the shell 1 is an integral molding structure with the fretting map layer 4.That is, in present embodiment,
The fretting map layer 4 serves as a part of the shell 1, is located at 1 inside of shell and is connected to the back cavity 101.
Specifically, when the shell 1 is integrally formed with the fretting map layer 4, by controlling the fretting map Shooting Technique,
So that the lateral surface of the shell 1 is formed hole-closing structure, while the medial surface of the shell 1 being made to correspond to the part of the back cavity 101
Form the open-celled structure with multiple described holes 41.
The shell 1 is integrally formed with the fretting map layer 4, so that consistency is good when the loudspeaker enclosure 100 produces,
Filling work procedure is saved, to effectively increase production efficiency.
Micro foaming injection moulding technique fills article mainly by the expansion of stomata, and under lower and average pressure
Complete the molding of product.It is broadly divided into three phases:
Supercritical fluid (CO2 or N2) is fused in hot melt adhesive and forms single-phase melt, and in certain constant pressure
It is kept under power.
The single phase solution is injected in the lower mold cavity of temperature and pressure by switching regulator nozzle, forms fretting map system
Product.
Since temperature and pressure reduces the unstability of initiation molecule, so that a large amount of nuclei of bubbles is formed in product, this
A little nuclei of bubbles, which are gradually grown up, generates small described hole 41.
It follows that the loudspeaker enclosure 100 of the utility model is with shell described in the micro foaming injection moulding technological forming
It is adjustable to the size of the position of the fretting map layer 4, volume and hole 41 thereon when body 1 and the fretting map layer 4
Control, meets the needs of more acoustical behavioies.
Compared with the relevant technologies, the loudspeaker enclosure of the utility model passes through micro foaming injection moulding technique two-shot process
The part for making the medial surface of the shell correspond to the back cavity forms one layer of fretting map layer with multiple described holes, to make
Back cavity forms the virtual operatic tunes of DBASS, and when secondary injection molding is limited small by space, is suitable for shell of different shapes, so that
The loudspeaker enclosure is applied widely；And adjustable, the more great Cheng of the position of quadric injection mould filling, volume and hole
The acoustics of the improvement loudspeaker enclosure of degree debugs performance；In addition, the shell is integrally formed with the fretting map layer, production
Consistency is good, saves filling work procedure, to effectively increase production efficiency.
Above-described is only the embodiments of the present invention, it should be noted here that for the ordinary skill of this field
For personnel, without departing from the concept of the present invention, improvement can also be made, but these belong to it is practical
Novel protection scope.
Claims (6)
1. a kind of loudspeaker enclosure, including with accommodating space shell, the sounding monomer that is contained in the accommodating space and
It is formed in the accommodating space and leads sound channel, the operatic tunes and back cavity before the accommodating space is separated by the sounding monomer,
The preceding operatic tunes is in communication with the outside and ante-chamber is collectively formed with the preceding operatic tunes by the sound channel of leading, which is characterized in that described
The part that the medial surface of shell corresponds to the back cavity is equipped with one layer of fretting map layer with multiple holes, and the fretting map layer passes through
Micro foaming injection moulding technique two-shot process takes shape in the inside of the shell.
2. loudspeaker enclosure according to claim 1, which is characterized in that the shell and the fretting map layer are integrated knot
Structure.
3. loudspeaker enclosure according to claim 2, which is characterized in that the medial surface of the shell corresponds to the portion of the back cavity
It is divided into the open-celled structure with multiple described holes.
4. loudspeaker enclosure according to claim 1, which is characterized in that the shell includes upper cover and is covered on the upper cover
And the lower cover of the accommodating space is surrounded jointly, the sounding monomer and the upper cover interval form the preceding operatic tunes, described to lead
Sound channel is formed in the upper cover, the sounding monomer and the upper cover and the lower cover surrounds the back cavity jointly；On described
The part of the back cavity corresponding to the side of the close accommodating space of lid is equipped with the fretting map layer.
5. loudspeaker enclosure according to claim 4, which is characterized in that the side close to the accommodating space of the lower cover
The part of the corresponding back cavity is equipped with the fretting map layer.
6. loudspeaker enclosure according to claim 1, which is characterized in that multiple described holes of the fretting map layer are in array
Arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821263172.8U CN208638528U (en) | 2018-08-06 | 2018-08-06 | Loudspeaker enclosure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821263172.8U CN208638528U (en) | 2018-08-06 | 2018-08-06 | Loudspeaker enclosure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208638528U true CN208638528U (en) | 2019-03-22 |
Family
ID=65740808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821263172.8U Expired - Fee Related CN208638528U (en) | 2018-08-06 | 2018-08-06 | Loudspeaker enclosure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208638528U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115209257A (en) * | 2022-09-14 | 2022-10-18 | 歌尔股份有限公司 | Casing of sound generating device, sound generating device and electronic equipment |
| CN115460518A (en) * | 2022-09-14 | 2022-12-09 | 歌尔股份有限公司 | Casing of sound generating device, sound generating device and electronic equipment |
-
2018
- 2018-08-06 CN CN201821263172.8U patent/CN208638528U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115209257A (en) * | 2022-09-14 | 2022-10-18 | 歌尔股份有限公司 | Casing of sound generating device, sound generating device and electronic equipment |
| CN115460518A (en) * | 2022-09-14 | 2022-12-09 | 歌尔股份有限公司 | Casing of sound generating device, sound generating device and electronic equipment |
| CN115209257B (en) * | 2022-09-14 | 2023-02-03 | 歌尔股份有限公司 | Casing of sound generating device, sound generating device and electronic equipment |
| CN115460518B (en) * | 2022-09-14 | 2024-05-14 | 歌尔股份有限公司 | Shell of sound generating device, sound generating device and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190322 Termination date: 20210806 |