CN208638566U - Loudspeaker enclosure - Google Patents
Loudspeaker enclosure Download PDFInfo
- Publication number
- CN208638566U CN208638566U CN201821263099.4U CN201821263099U CN208638566U CN 208638566 U CN208638566 U CN 208638566U CN 201821263099 U CN201821263099 U CN 201821263099U CN 208638566 U CN208638566 U CN 208638566U
- Authority
- CN
- China
- Prior art keywords
- back cavity
- fretting map
- wall
- accommodating space
- loudspeaker enclosure
- 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
Links
Abstract
The utility model provides a kind of loudspeaker enclosure, including the shell with accommodating space, sounding monomer, it is formed in the accommodating space and leads sound channel, the wall and fretting map film extended to form by the case inside, the operatic tunes and back cavity before the accommodating space is divided 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, the fretting map membrane cover, which is set, to be fixed on the wall and the back cavity is divided into the first back cavity and the second back cavity being connected jointly with the wall, the sounding monomer is located at first back cavity, sound-absorbing particle is filled in second back cavity, the sound-absorbing particle is packaged in second back cavity by the fretting map film, the fretting map film is the structure sheaf made of micro foaming injection moulding technique with multiple leaks.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 is formed in the accommodating space and leads sound channel, ventilative isolation film and the double wall extended to form by the case inside,
The operatic tunes and back cavity before the accommodating space is separated by the sounding monomer, the sound channel of leading connect the preceding operatic tunes and the external world
Lead to and collectively forms the ante-chamber with the preceding operatic tunes；The ventilative isolation film be sticked be fixed on the double wall and with the double wall
The back cavity is divided into the first back cavity and the second back cavity being connected jointly, the sounding monomer is located at first back cavity,
Filling acoustical cotton or sound-absorbing particle are in second back cavity to form microcellular structure, to form the virtual operatic tunes (space DBASS)
To improve the frequency acoustic performance of the loudspeaker enclosure.
However, it is by filling sound-absorbing material that the second back cavity, which forms the virtual operatic tunes, in the loudspeaker enclosure of the relevant technologies
To form microcellular structure, and then form the virtual operatic tunes.The structure because being limited by the space size for the sound-absorbing material and filling filled,
Second back cavity needs larger cavity area and keeps relatively regular shape, using limited.Ventilative isolation film passes through injection molding or heat
Molten mode manufactures assembly, but produces that unstability is larger, is easy to produce more bad, for example ventilative isolation film is as inserts note
Modeling: situations such as being easy damaged, dirty, fold influences yield；Face where ventilative isolation film is necessary for plane, is not suitable for doing curved surface
Or abnormity injection molding, using limited.
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 comprising the shell with accommodating space
Body, the sounding monomer being contained in the accommodating space are formed in the accommodating space and lead sound channel, by the shell
The wall and fretting map film that side extends to form, the operatic tunes and back cavity, institute before the accommodating space is divided by the sounding monomer
It states and leads sound channel the preceding operatic tunes is in communication with the outside and is collectively formed ante-chamber with the preceding operatic tunes, the fretting map membrane cover sets solid
Due to the wall and the back cavity is divided into the first back cavity and the second back cavity being connected, the hair jointly with the wall
Sound monomer is located at first back cavity, fills sound-absorbing particle in second back cavity, and the fretting map film is by the sound-absorbing particle
It is packaged in second back cavity, the fretting map film is to have multiple leaks made of micro foaming injection moulding technique
Structure sheaf.
Preferably, the wall is structure as a whole with the fretting map film.
Preferably, multiple leaks of the fretting map film are arranged in array.
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 upper cover extends to form described enclose toward the lower cover direction
Wall.
Compared with the relevant technologies, the loudspeaker enclosure of the utility model is set by the fretting map membrane cover is fixed on the wall
And the back cavity is divided into the first back cavity and the second back cavity being connected jointly with the wall, first back cavity passes through
Fretting map film with multiple leaks is connected with second back cavity, and the fretting map film seals the sound-absorbing particle
Loaded in second back cavity, so that second back cavity be made to form the virtual operatic tunes of DBASS；When the fretting map film injection molding by
Space limits curved surface that is small and being suitble to the various walls, is suitable for shell of different shapes, can make the second back cavity volume
It is smaller and be suitble to various irregular shapes, so that the loudspeaker enclosure is applied widely；And the fretting map film injection molding can be done
Abnormity injection molding, volume and leak it is adjustable, greatly improve the acoustics debugging performance of the loudspeaker enclosure；Separately
Outside, the wall and the fretting map film are injection molding, and conformity of production is good, effectively increases 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, wall 4 and fretting map film 5.
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 6 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 6 and the back cavity 101.Specifically, the vibrating diaphragm 21 is arranged with the upper cover 12 interval
The preceding operatic tunes 6 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 6 is in communication with the outside and common with the preceding operatic tunes 6 by the sound channel 3 of leading
Surround ante-chamber 102.The ante-chamber 102 is used to form side vocal structure.
The wall 4 is by extending to form on the inside of the shell 1.In present embodiment, the wall 4 is formed on described
Lid 12, specifically, what upper cover 12 described in the wall 4 was extended to form toward 11 direction of lower cover.
The lid of fretting map film 5, which is set, to be fixed on the wall 4 and is jointly divided into the back cavity 101 with the wall 4
The first back cavity 71 and the second back cavity 72 being connected.In present embodiment, the sounding monomer 2 is located at first back cavity 71,
Sound-absorbing particle is filled in second back cavity 72, the sound-absorbing particle is packaged in second back cavity 72 by the fretting map film 5
It is interior.The structure forms the virtual operatic tunes of DBASS in second back cavity 72, is effectively increased sound wave in second back cavity 72
Interior route of transmission, so as to improve the frequency acoustic performance of the loudspeaker enclosure 100.
The fretting map film 5 is to pass through the structure sheaf with multiple leaks 51.In present embodiment, micro- hair
Multiple leaks 51 of vacuolar membrane 5 are arranged in array, certainly only a kind of citing, arrangement mode without being limited thereto.
In present embodiment, the fretting map film 5 is made up of micro foaming injection moulding technique.The fretting map film 5 injection molding
Curved surface that is small and being suitble to the various walls 4 is limited by space when molding, is suitable for the shell 1 of different shapes, institute can be made
It states the second rear chamber 72 to accumulate smaller and be suitble to various irregular shapes, so that the loudspeaker enclosure 100 is applied widely.And institute
The adjustable of abnormity injection molding, volume and leak can be done by stating fretting map film 5, greatly improve the loudspeaker enclosure 100
Frequency acoustic debug performance.
More preferably, the wall 4 is structure as a whole with the fretting map film 5.Specifically, the wall 4 and micro- hair
Vacuolar membrane 5 is to be formed fixed by two-shot molding process or form fixation by two-shot process.The wall 4 with it is described micro-
When 5 injection molding of foam films, by controlling the fretting map Shooting Technique, make corresponding first back cavity of the fretting map film 5
71 and the part of second back cavity 72 form the open-celled structure with multiple leaks 51, and inner air can lead to
Crossing multiple leaks 51 makes first back cavity 71 be connected with second back cavity 72.
The wall 4 is injection molding with the fretting map film 5, so that consistency is good when the loudspeaker enclosure 100 produces,
To effectively increase production efficiency.
When the fretting map film 5 forms, by controlling the micro foaming injection moulding technique, the fretting map film 5 is adjusted
The leak 51 size and number.Specifically, micro foaming injection moulding technique carrys out filler mainly by the expansion of stomata
Product, and under lower and average pressure complete product molding.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 the small leak 51.
It follows that the loudspeaker enclosure 100 of the utility model is enclosed with described in the micro foaming injection moulding technological forming
When wall 4 and the fretting map film 5, the size of the volume to the fretting map film 5 and leak 51 thereon is controllable, full
The demand of the more acoustical behavioies of foot.
Compared with the relevant technologies, the loudspeaker enclosure of the utility model is set by the fretting map membrane cover is fixed on the wall
And the back cavity is divided into the first back cavity and the second back cavity being connected jointly with the wall, first back cavity passes through
Fretting map film with multiple leaks is connected with second back cavity, and the fretting map film seals the sound-absorbing particle
Loaded in second back cavity, so that second back cavity be made to form the virtual operatic tunes of DBASS；When the fretting map film injection molding by
Space limits curved surface that is small and being suitble to the various walls, is suitable for shell of different shapes, can make the second back cavity volume
It is smaller and be suitble to various irregular shapes, so that the loudspeaker enclosure is applied widely；And the fretting map film injection molding can be done
Abnormity injection molding, volume and leak it is adjustable, greatly improve the acoustics debugging performance of the loudspeaker enclosure；Separately
Outside, the wall and the fretting map film are injection molding, and conformity of production is good, effectively increases 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 (4)
1. a kind of loudspeaker enclosure comprising shell, the sounding monomer that is contained in the accommodating space with accommodating space with
And be formed in the accommodating space and lead sound channel, the accommodating space is divided into the preceding operatic tunes with after 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 chamber, the sound channel of leading, which is characterized in that institute
Stating loudspeaker enclosure further includes the wall and fretting map film extended to form by the case inside, and the fretting map membrane cover sets fixation
In the wall and the back cavity is divided into the first back cavity and the second back cavity being connected, the sounding jointly with the wall
Monomer is located at first back cavity, fills sound-absorbing particle in second back cavity, the fretting map film seals the sound-absorbing particle
Loaded in second back cavity, the fretting map film is made of micro foaming injection moulding technique with multiple leaks
Structure sheaf.
2. loudspeaker enclosure according to claim 1, which is characterized in that the wall and the fretting map film are integrated knot
Structure.
3. loudspeaker enclosure according to claim 1, which is characterized in that multiple leaks of the fretting map film are in battle array
Column arrangement.
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
It covers toward the lower cover direction and extends to form the wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821263099.4U CN208638566U (en) | 2018-08-06 | 2018-08-06 | Loudspeaker enclosure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821263099.4U CN208638566U (en) | 2018-08-06 | 2018-08-06 | Loudspeaker enclosure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208638566U true CN208638566U (en) | 2019-03-22 |
Family
ID=65739879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821263099.4U Expired - Fee Related CN208638566U (en) | 2018-08-06 | 2018-08-06 | Loudspeaker enclosure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208638566U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112804602A (en) * | 2019-11-14 | 2021-05-14 | 陈恺琳 | Loudspeaker box |
| WO2021109158A1 (en) * | 2019-12-07 | 2021-06-10 | 瑞声声学科技(深圳)有限公司 | Speaker enclosure |
| WO2023206714A1 (en) * | 2022-04-29 | 2023-11-02 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
-
2018
- 2018-08-06 CN CN201821263099.4U patent/CN208638566U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112804602A (en) * | 2019-11-14 | 2021-05-14 | 陈恺琳 | Loudspeaker box |
| WO2021109158A1 (en) * | 2019-12-07 | 2021-06-10 | 瑞声声学科技(深圳)有限公司 | Speaker enclosure |
| WO2023206714A1 (en) * | 2022-04-29 | 2023-11-02 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
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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 |