CN108238775A - A kind of preparation method of loud speaker sound-absorbing material - Google Patents
A kind of preparation method of loud speaker sound-absorbing material Download PDFInfo
- Publication number
- CN108238775A CN108238775A CN201611212346.3A CN201611212346A CN108238775A CN 108238775 A CN108238775 A CN 108238775A CN 201611212346 A CN201611212346 A CN 201611212346A CN 108238775 A CN108238775 A CN 108238775A
- Authority
- CN
- China
- Prior art keywords
- loud speaker
- slab structure
- sound
- absorbing material
- fiber
- 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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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/62—Coating or impregnation with organic materials
- C04B41/63—Macromolecular compounds
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Signal Processing (AREA)
- Acoustics & Sound (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
The invention discloses a kind of preparation methods of loud speaker sound-absorbing material；It is comprised the following steps：First, the raw material of following parts by weight is taken：Cotton fiber 15% -20%, polyester fiber 40% -45%, aluminum fiber 10% -15%, land plaster 10% -15%, nano-sized carbon 5% -10%, aluminium hydroxide 1% -2%, polyisobutene 2% -4%；2nd, slurry is made in above-mentioned raw materials and mixed；3rd, it is slab structure by mixed slurry hot pressing, the upper surface of slab structure is waveform；4th, acrylic acid polyester waterproofing agent is sprayed in slab structure, and is dried；5th, slab structure is punched out, punching size is 15%-the 30% of loud speaker back cavity size；The sound-absorbing material sound-absorbing effect of gained is good, and the F0 of loud speaker module can be made to drop to sufficiently low, waterproof, good flame retardation effect, at low cost.
Description
Technical field
The present invention relates to quieter material technical fields, and in particular to a kind of preparation method of loud speaker sound-absorbing material.
Background technology
Loud speaker module converts electrical signals to voice signal energy converter as one kind, be in electro-acoustic product can not or
Scarce component.Loud speaker module is usually made of shell and loudspeaker monomer, and loudspeaker monomer divides entire module shell inner cavity
It is divided into two cavitys of the preceding operatic tunes and the rear operatic tunes.In order to improve loud speaker module acoustical behavior (as reduce module resonant frequency F0,
Spread bandwidth), it will usually sound-absorbing part is added in the rear operatic tunes, sound-absorbing part can sponge part acoustic energy, be equivalent to expansion rear chamber
Volume reduces module F0 effects so as to reach.Traditional sound-absorbing part is foaming kind foam, such as polyurethane, melamine.Closely
Year, increasingly lightening with wearable electronic product, operatic tunes volume is constantly compressed thereafter, traditional foaming kind foam sound-absorbing
It is sufficiently low that part is difficult to make the F0 of loud speaker module to drop to, and can not ensure the middle low frequency sound quality of loud speaker module.
Invention content
In view of the defects and deficiencies of the prior art, the present invention intends to provide a kind of systems of loud speaker sound-absorbing material
Preparation Method.
To achieve the above object, the technical solution adopted by the present invention is：It is comprised the following steps：
First, the raw material of following parts by weight is taken：Cotton fiber 15%-20%, polyester fiber 40%-45%, aluminum fiber 10%-
15%th, land plaster 10%-15%, nano-sized carbon 5%-10%, aluminium hydroxide 1%-2%, polyisobutene 2%-4%；
2nd, slurry is made in above-mentioned raw materials and mixed；
3rd, it is slab structure by mixed slurry hot pressing, the upper surface of slab structure is waveform；
4th, acrylic acid polyester waterproofing agent is sprayed in slab structure, and is dried；
5th, slab structure is punched out, punching size is the 15%-30% of loud speaker back cavity size.
After using the above scheme, the present invention has the beneficial effect that：A kind of system of loud speaker sound-absorbing material of the present invention
Preparation Method, easy to operate, the sound-absorbing material sound-absorbing effect of gained is good, and the F0 of loud speaker module can be made to drop to sufficiently low, waterproof, resistance
Fuel efficiency fruit is good, at low cost.
Specific embodiment
The present invention is further illustrated below.
Present embodiment the technical solution adopted is that：It is comprised the following steps：
First, the raw material of following parts by weight is taken：Cotton fiber 15%-20%, polyester fiber 40%-45%, aluminum fiber 10%-
15%th, land plaster 10%-15%, nano-sized carbon 5%-10%, aluminium hydroxide 1%-2%, polyisobutene 2%-4%；
2nd, slurry is made in above-mentioned raw materials and mixed；
3rd, it is slab structure by mixed slurry hot pressing, the upper surface of slab structure is waveform；
4th, acrylic acid polyester waterproofing agent is sprayed in slab structure, and is dried；
5th, slab structure is punched out, punching size is the 15%-30% of loud speaker back cavity size.
After using the above scheme, the present invention has the beneficial effect that：A kind of system of loud speaker sound-absorbing material of the present invention
Preparation Method, easy to operate, the sound-absorbing material sound-absorbing effect of gained is good, and the F0 of loud speaker module can be made to drop to sufficiently low, waterproof, resistance
Fuel efficiency fruit is good, at low cost.
The above is merely illustrative of the technical solution of the present invention and unrestricted, and those of ordinary skill in the art are to this hair
The other modifications or equivalent replacement that bright technical solution is made, without departing from the spirit and scope of technical solution of the present invention,
It is intended to be within the scope of the claims of the invention.
Claims (1)
1. a kind of preparation method of loud speaker sound-absorbing material, it is characterised in that it is comprised the following steps：
First, the raw material of following parts by weight is taken：Cotton fiber 15%-20%, polyester fiber 40%-45%, aluminum fiber 10%-15%,
Land plaster 10%-15%, nano-sized carbon 5%-10%, aluminium hydroxide 1%-2%, polyisobutene 2%-4%；
2nd, slurry is made in above-mentioned raw materials and mixed；
3rd, it is slab structure by mixed slurry hot pressing, the upper surface of slab structure is waveform；
4th, acrylic acid polyester waterproofing agent is sprayed in slab structure, and is dried；
5th, slab structure is punched out, punching size is the 15%-30% of loud speaker back cavity size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611212346.3A CN108238775A (en) | 2016-12-25 | 2016-12-25 | A kind of preparation method of loud speaker sound-absorbing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611212346.3A CN108238775A (en) | 2016-12-25 | 2016-12-25 | A kind of preparation method of loud speaker sound-absorbing material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108238775A true CN108238775A (en) | 2018-07-03 |
Family
ID=62704465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611212346.3A Pending CN108238775A (en) | 2016-12-25 | 2016-12-25 | A kind of preparation method of loud speaker sound-absorbing material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108238775A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190253804A1 (en) * | 2018-02-13 | 2019-08-15 | Nokia Technologies Oy | Speaker apparatus having a heat dissipation structure including an active element |
| US10575098B2 (en) | 2018-02-13 | 2020-02-25 | Nokia Technologies Oy | Speaker apparatus having a heat dissipation structure |
-
2016
- 2016-12-25 CN CN201611212346.3A patent/CN108238775A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190253804A1 (en) * | 2018-02-13 | 2019-08-15 | Nokia Technologies Oy | Speaker apparatus having a heat dissipation structure including an active element |
| US10575098B2 (en) | 2018-02-13 | 2020-02-25 | Nokia Technologies Oy | Speaker apparatus having a heat dissipation structure |
| US10841706B2 (en) * | 2018-02-13 | 2020-11-17 | Nokia Technologies Oy | Speaker apparatus having a heat dissipation structure including an active element |
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Legal Events
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180703 |