CN105828262B - The encapsulation sound-absorbing component of the slot structure containing ventilation for loudspeaker - Google Patents
The encapsulation sound-absorbing component of the slot structure containing ventilation for loudspeaker Download PDFInfo
- Publication number
- CN105828262B CN105828262B CN201610280369.1A CN201610280369A CN105828262B CN 105828262 B CN105828262 B CN 105828262B CN 201610280369 A CN201610280369 A CN 201610280369A CN 105828262 B CN105828262 B CN 105828262B
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- CN
- China
- Prior art keywords
- sound
- absorbing component
- encapsulation
- support shell
- loudspeaker
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Classifications
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- 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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
Abstract
The invention discloses a kind of encapsulation sound-absorbing components of slot structure containing ventilation for loudspeaker, including holding in the palm shell, it holds in the palm and is filled with sound-absorbing material in shell, support shell upper and lower is provided with ventilation partition apparatus, the encapsulation sound-absorbing component is arranged after loudspeaker in the operatic tunes, the support shell lower part is provided with several supporting legs, and rear operatic tunes bottom is left in the support of support shell lower end surface, forms air channel.Porosity sound-absorbing material effective rate of utilization can be improved in the present invention, and making it preferably improves loudspeaker mould group acoustical behavior.
Description
Technical field
The present invention relates to a kind of encapsulation sound-absorbing components of slot structure containing ventilation for loudspeaker, and in particular to sound-absorbing component
The ventilation slot structure of bottom.
Background technique
In recent years, the loudspeaking under the increasingly lightening main trend of electronic product, as electronic product important spare part
Device unit will also go with the tide of historical development, constantly to flat development.However the inclined graduation of miniature SPK mould group, necessarily cause acoustics back cavity
Cavity volume reduces, and harmonic frequency of loudspeakers F0 is caused to increase, and low frequency sensitivity reduces, and it is unfavorable to cause to loudspeaker acoustical behavior
It influences.To solve the lightening contradiction between acoustical behavior of loudspeaker mould group, technical staff's discovery is by porous material (such as activity
Charcoal, natural zeolite powder, active silica, molecular sieve or the mixture made according to particular types and ratio etc.) be filled into after
In the operatic tunes, using specific physical duct construction inside porous material, to rear operatic tunes gas quick adsorption-desorption property, realization is raised
Sound device acoustics back cavity resonance space virtually increases effect, to be effectively reduced harmonic frequency of loudspeakers F0, improves low-frequency sensitive
Degree meets client to the double requirements of loudspeaker mould group flattening and high characteristics of acoustic energy.
Such as Chinese invention patent " loudspeaker mould group " (application number: discloses a kind of loudspeaking in 201510173142.2)
Device is provided with sound-absorbing component in the rear operatic tunes.Chinese utility model patent " the loudspeaker mould group that side goes out acoustic form " (application number:
A kind of loudspeaker mould group of setting front and back operatic tunes is disclosed in 201420214862.X).Chinese invention patent " sound-absorbing material preparation
Method and sound-absorbing material " (application number: discloses a kind of sound-absorbing material, for improving loudspeaker in 201510560252.4)
Acoustical behavior.
It is usually at present to hold in the palm shell-type encapsulation scheme by the scheme that porous material is filled into the operatic tunes after mould group, it first will be porous
Property material package to support shell in sound-absorbing part is made, then by sound-absorbing part be fixed to loudspeaker mould group in, to reach improvement loudspeaking
The purpose of device mould group acoustical behavior.Such scheme has following defects that support shell sheet as plastic material, does not have aeration, only
Screen cloth one side is ventilative, and the diaphragm of loudspeaker generates air-flow when vibrating, and due to that can not form ventilating return, has very strong cut to air-flow
Weak effect, therefore cause to be encapsulated in interior porous material and gas quick adsorption-desorption is restricted, it is raised so that improving
Sound device mould group acoustical behavior effect is deteriorated.
The problem present on greatly limits porosity sound-absorbing material for improving Microspeaker mould group acoustical behavior
Effect reduces the effective rate of utilization of porosity sound-absorbing material, in a disguised form increases cost of goods manufactured, results in waste of resources.
Summary of the invention
For the above problem in the prior art, the purpose of the present invention is to provide a kind of encapsulation sound-absorbing components, first will
Porous material is encapsulated into sound-absorbing part is made in ventilating return structure support shell, is then fixed the sound-absorbing part and is ventilated back with it
After the loudspeaker mould group that road matches in the operatic tunes, porosity sound-absorbing material effective rate of utilization is improved, it is made preferably to improve loudspeaking
Device mould group acoustical behavior.
To achieve the goals above, the invention adopts the following technical scheme:
The encapsulation sound-absorbing component of the slot structure containing ventilation for loudspeaker, including support shell, hold in the palm and are filled with sound-absorbing material in shell,
Support shell upper and lower is provided with ventilation partition apparatus, and the encapsulation sound-absorbing component is arranged after loudspeaker in the operatic tunes, the support shell
Lower part is provided with several supporting legs, and rear operatic tunes bottom is left in the support of support shell lower end surface, forms air channel.
It further, is charging port above the support shell, lower section is venthole, using the ventilation partition apparatus through double-sided adhesive
The modes such as bonding or hot melt or ultrasonic welding are sealed.
Further, the supporting leg is constituted by the shell of support shell is downwardly projecting, and ventilation groove height is 0.1-2 millimeters.
Further, the supporting leg is reserved pillar by rear operatic tunes bottom and is constituted.
Further, the pillar is that rear operatic tunes integrated through injection molding is formed.
Further, the supporting leg is made of the adhesive layer that support shell lower end surface is arranged.
Further, the adhesive layer uses rubberised layer or double-sided adhesive, with a thickness of 0.1-1 millimeters.
Further, the support shell material matter is the plastics such as polyethylene, polypropylene, polycarbonate or polyurethane, with a thickness of 0.05
~0.5 millimeter.
Further, the ventilation partition apparatus is the one or more compound of the materials such as non-woven fabrics, metal mesh or screen cloth,
Air permenbility range are as follows: 50-5000cc/cm2S, with a thickness of 0.01-0.1 millimeters.
Further, the screen cloth material is the one or more compound of the materials such as polyethylene, polypropylene, acrylic fibers or nylon.
It is provided with the loudspeaker of above-mentioned encapsulation sound-absorbing component, the loudspeaker is provided with the preceding operatic tunes and the rear operatic tunes, the rear operatic tunes
In be provided with the encapsulation sound-absorbing component.
The encapsulation sound-absorbing component being arranged using the above structure has the advantage that
This product forms ventilating return, diaphragm of loudspeaker vibration by the way that air channel is arranged in encapsulation sound-absorbing component bottom
When generate air-flow, can successfully be applied to very much in sound-absorbing component on porous material, porous material carries out gas quick
Adsorption-desorption effect realizes that loudspeaker acoustics back cavity resonance space virtually increases effect, improves loudspeaker mould group acoustical behavior.
Compared with traditional support shell-type sound-absorbing part, porosity sound-absorbing material effective rate of utilization is can be improved in this product, makes it
Preferably improve loudspeaker mould group acoustical behavior.
The effect of ventilation partition apparatus is to prevent the substance encapsulated in sound-absorbing part from entering loudspeaking set by this product
In device monomer, avoid adversely affecting loudspeaker other assemblies, at the same be in order to guarantee good aeration, Cai sound-absorbing particle
It, which can be played, improves the effect of loudspeaker mould group acoustical behavior.
The sound-absorbing particle that this product is filled be porous material (such as molecular sieve, active carbon, active silica, naturally
Zeolite powder or the mixture etc. made according to particular types and ratio) it is made up of forming technique, it is that sound-absorbing component improves loudspeaking
The effective component of device acoustical behavior.
Detailed description of the invention
Fig. 1 is cross-sectional view of the invention；
Fig. 2 is bottom view of the invention；
Fig. 3 is usage state diagram of the invention；
Fig. 4 is usage state diagram of the invention；
Fig. 5 is usage state diagram of the invention.
In figure: 1. ventilation partition apparatus；2. support shell；3. supporting leg；4. screen cloth；5. air channel；6. sound-absorbing material；7. loudspeaking
Device monomer；The operatic tunes after 8.；9. abutting edge；10. pillar；11. adhesive layer.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, right in the following with reference to the drawings and specific embodiments
The present invention is described in detail.
Embodiment 1
It is as shown in Figure 1 and Figure 2 one of embodiment of the present invention, in this embodiment, the slot structure containing ventilation for loudspeaker
Encapsulation sound-absorbing component, including support shell 2, hold in the palm shell 2 in be filled with sound-absorbing material 6, support 2 upper and lower of shell be provided with ventilation partition dress
It sets, respectively ventilation partition apparatus 1,4.
As shown in figure 3, encapsulation sound-absorbing component is arranged after loudspeaker in the operatic tunes 8, support 2 lower part of shell is provided with several supporting legs 3,
4-8 supporting leg can be specifically used, rear 8 bottom of the operatic tunes is left into the support of support 2 lower end surface of shell, forms air channel 5.It thus forms
Ventilating return, the diaphragm of loudspeaker generates air-flow when vibrating, can successfully be applied to very much in sound-absorbing component on porous material, more
Porous material carries out quick adsorption-desorption to gas, realizes that loudspeaker acoustics back cavity resonance space virtually increases effect, changes
Kind loudspeaker mould group acoustical behavior.
Holding in the palm above shell 2 is charging port, and lower section is venthole, be utilized respectively ventilation partition apparatus 1,4 through two-sided glue sticking or
The modes such as hot melt or ultrasonic welding are sealed.
As shown in Figure 1, supporting leg 3 is constituted by the shell of support shell 2 is downwardly projecting, 5 height of air channel is 0.1-2 millimeters.Rear
In the operatic tunes 8, encapsulation sound-absorbing component needs are adhesively fixed, and abutting edge 9 is located at each 3 lower end surface of supporting leg, set at this time
Thickness of adhibited layer does not need particular/special requirement.
Supporting leg 3 can be it is solid or hollow, when supporting leg 3 be it is hollow when, 3 inner space of supporting leg and support shell 2 inside
Space is perforation one.
Holding in the palm 2 material of shell is the plastics such as polyethylene, polypropylene, polycarbonate or polyurethane, with a thickness of 0.05~0.5 millimeter.
Ventilation partition apparatus 1,4 is one or more compound, the Air permenbility model of the materials such as non-woven fabrics, metal mesh or screen cloth
It encloses are as follows: 50-5000cc/cm2S, with a thickness of 0.01-0.1 millimeters.
When ventilating partition apparatus 1,4 using screen cloth, screen cloth material is the materials such as polyethylene, polypropylene, acrylic fibers or nylon
It is one or more compound.
Embodiment 2
The two of the embodiment of the present invention are illustrated in figure 4, in this embodiment, supporting leg reserves pillar 10 by rear 8 bottom of the operatic tunes
It constitutes.
Pillar 10 is that rear 8 integrated through injection molding of the operatic tunes is formed.Design is conducive to simplify the structure for holding in the palm shell 2 in this way.
Embodiment 3
The three of the embodiment of the present invention are illustrated in figure 5, in this embodiment, the bonding that supporting leg is arranged by 2 lower end surface of support shell
Layer 11 is constituted.
Adhesive layer 11 uses rubberised layer or double-sided adhesive, with a thickness of 0.1-1 millimeters.Design is conducive to simplify support 2 He of shell in this way
The structure of the operatic tunes 8 afterwards.
Mode the above is only the implementation of the present invention is not intended to limit the scope of the present invention.It is all in the present invention
Spirit and principle within any modification, equivalent replacement, improvement, extension etc., be all contained in protection scope of the present invention
It is interior.
Claims (10)
1. the encapsulation sound-absorbing component of the slot structure containing ventilation for loudspeaker, including support shell, hold in the palm and are filled with sound-absorbing material in shell, support
Shell upper and lower is provided with ventilation partition apparatus, which is characterized in that and the encapsulation sound-absorbing component is arranged after loudspeaker in the operatic tunes,
The support shell lower part is provided with several supporting legs, and rear operatic tunes bottom is left in the support of support shell lower end surface, forms air channel.
2. encapsulation sound-absorbing component according to claim 1, which is characterized in that be charging port above the support shell, lower section is
Venthole, using the ventilation partition apparatus through two-sided glue sticking or hot melt or ultrasonic solder up.
3. encapsulation sound-absorbing component according to claim 1, which is characterized in that the supporting leg is downwardly projecting by the shell of support shell
It constitutes, ventilation groove height is 0.1-2 millimeters.
4. encapsulation sound-absorbing component according to claim 1, which is characterized in that the supporting leg reserves pillar by rear operatic tunes bottom
It constitutes.
5. encapsulation sound-absorbing component according to claim 4, which is characterized in that the pillar is rear operatic tunes integrated through injection molding shape
At.
6. encapsulation sound-absorbing component according to claim 1, which is characterized in that the supporting leg is arranged viscous by support shell lower end surface
Connect layer composition.
7. encapsulation sound-absorbing component according to claim 6, which is characterized in that the adhesive layer uses rubberised layer or two-sided
Glue, with a thickness of 0.1-1 millimeters.
8. encapsulation sound-absorbing component according to claim 1, which is characterized in that the support shell material matter be polyethylene, polypropylene,
Polycarbonate or polyurethane, with a thickness of 0.05~0.5 millimeter.
9. encapsulation sound-absorbing component according to claim 2, which is characterized in that the ventilation partition apparatus is non-woven fabrics, gold
Belong to one or more compound, the Air permenbility range are as follows: 50-5000cc/cm of net or screen cloth2S, with a thickness of 0.01-0.1 millimeters.
10. encapsulation sound-absorbing component according to claim 9, which is characterized in that the screen cloth material is polyethylene, poly- third
Alkene, acrylic fibers or nylon it is one or more compound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610280369.1A CN105828262B (en) | 2016-04-28 | 2016-04-28 | The encapsulation sound-absorbing component of the slot structure containing ventilation for loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610280369.1A CN105828262B (en) | 2016-04-28 | 2016-04-28 | The encapsulation sound-absorbing component of the slot structure containing ventilation for loudspeaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105828262A CN105828262A (en) | 2016-08-03 |
| CN105828262B true CN105828262B (en) | 2019-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610280369.1A Active CN105828262B (en) | 2016-04-28 | 2016-04-28 | The encapsulation sound-absorbing component of the slot structure containing ventilation for loudspeaker |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206602656U (en) * | 2017-03-21 | 2017-10-31 | 歌尔股份有限公司 | Loudspeaker module |
| CN207869334U (en) * | 2017-12-22 | 2018-09-14 | 歌尔科技有限公司 | A kind of encapsulating structure and loud speaker module of sound-absorbing particle |
| CN108462918B (en) * | 2018-03-21 | 2019-09-10 | 歌尔股份有限公司 | A kind of loudspeaker mould group and electronic equipment |
| CN109831725A (en) * | 2018-12-27 | 2019-05-31 | 瑞声科技(新加坡)有限公司 | Loudspeaker mould group |
| CN109878423B (en) * | 2019-02-22 | 2020-09-18 | 中国汽车工程研究院股份有限公司 | Structure for solving modal resonance of sound cavity in vehicle |
| WO2021109156A1 (en) * | 2019-12-07 | 2021-06-10 | 瑞声声学科技(深圳)有限公司 | Loudspeaker box |
| CN111083602A (en) * | 2019-12-19 | 2020-04-28 | 歌尔股份有限公司 | Sound absorbing material packaging structure for sound generating device and sound generating device |
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| CN204498363U (en) * | 2015-04-13 | 2015-07-22 | 歌尔声学股份有限公司 | Sound-absorbing assembly and be provided with the loud speaker module of this sound-absorbing assembly |
| CN204498347U (en) * | 2015-04-13 | 2015-07-22 | 歌尔声学股份有限公司 | Loud speaker module |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101151417B (en) * | 2005-03-30 | 2011-05-04 | 松下电器产业株式会社 | Sound absorption structure body |
| US8965025B2 (en) * | 2012-05-17 | 2015-02-24 | Aac Acoustic Technologies (Shenzhen) Co., Ltd. | Micro-speaker box |
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| CN2191029Y (en) * | 1994-05-07 | 1995-03-08 | 陈孝中 | Air cleaner |
| CN204498363U (en) * | 2015-04-13 | 2015-07-22 | 歌尔声学股份有限公司 | Sound-absorbing assembly and be provided with the loud speaker module of this sound-absorbing assembly |
| CN204498347U (en) * | 2015-04-13 | 2015-07-22 | 歌尔声学股份有限公司 | Loud speaker module |
| CN204681564U (en) * | 2015-05-12 | 2015-09-30 | 瑞声光电科技(常州)有限公司 | Microphone device |
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| CN105828262A (en) | 2016-08-03 |
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Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Applicant after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Applicant before: Goertek Inc. |
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