CN106963551A - Sound-absorbing and sound-insulating earplug and manufacturing method thereof - Google Patents
Sound-absorbing and sound-insulating earplug and manufacturing method thereof Download PDFInfo
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- CN106963551A CN106963551A CN201710282879.7A CN201710282879A CN106963551A CN 106963551 A CN106963551 A CN 106963551A CN 201710282879 A CN201710282879 A CN 201710282879A CN 106963551 A CN106963551 A CN 106963551A
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- ear plug
- absorbing
- shell
- acoustic insulating
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- 238000004519 manufacturing process Methods 0.000 title abstract description 3
- 239000011358 absorbing material Substances 0.000 claims abstract description 28
- 239000011229 interlayer Substances 0.000 claims abstract description 17
- 238000009987 spinning Methods 0.000 claims description 45
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical group C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 24
- 239000002904 solvent Substances 0.000 claims description 18
- 238000002360 preparation method Methods 0.000 claims description 15
- 239000000835 fiber Substances 0.000 claims description 14
- 239000005030 aluminium foil Substances 0.000 claims description 12
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 12
- 239000002105 nanoparticle Substances 0.000 claims description 11
- 238000000227 grinding Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000000741 silica gel Substances 0.000 claims description 7
- 229910002027 silica gel Inorganic materials 0.000 claims description 7
- 239000004793 Polystyrene Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 6
- 229920002223 polystyrene Polymers 0.000 claims description 6
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical class CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 5
- 239000004816 latex Substances 0.000 claims description 3
- 229920000126 latex Polymers 0.000 claims description 3
- 238000003760 magnetic stirring Methods 0.000 claims description 3
- -1 dimethyl formyls Amine Chemical class 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 210000003128 head Anatomy 0.000 description 4
- 238000007689 inspection Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 210000003454 tympanic membrane Anatomy 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000007783 nanoporous material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
- A61F11/06—Protective devices for the ears
- A61F11/08—Protective devices for the ears internal, e.g. earplugs
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/20—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of cyclic compounds with one carbon-to-carbon double bond in the side chain
- D01F6/22—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of cyclic compounds with one carbon-to-carbon double bond in the side chain from polystyrene
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Otolaryngology (AREA)
- Biomedical Technology (AREA)
- Physics & Mathematics (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Acoustics & Sound (AREA)
- Biophysics (AREA)
- Chemical & Material Sciences (AREA)
- Psychology (AREA)
- Textile Engineering (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention relates to a sound-absorbing and sound-insulating earplug and a manufacturing method thereof, the sound-absorbing and sound-insulating earplug comprises two parts, namely an elastic shell and a shell interlayer, wherein the elastic shell is similar to the appearance of a Helmholtz resonator and consists of a spherical cavity and a neck, and the shell interlayer is filled with a porous sound-absorbing material.
Description
Technical field
The present invention relates to a kind of sound absorption and insulation device and preparation method thereof, and in particular to a kind of imitative Helmholtz resonator ear
Plug and preparation method thereof.
Background technology
Presently used sound-absorbing acoustic insulating ear plug, is generally all that by common sound-absorbing material, such as cotton fiber is constituted, materials for
Common acoustic has certain soundproof effect, but does not have deadening for larger high-decibel noise, and noise sound wave is still
Ear-drum can be caused harm by earplug incoming ear-drum.
Helmholtz resonator sound absorption is widely used as a kind of effective low-frequency noise control measure and method,
When the position of sound Helmholtz resonator, when resonator inner air is compressed by the pressure of external world's fluctuation, in pipeline
Air can occur vibratory motion, and the air in cavity to generation restoring force, acoustic wave energy can in resonator quilt
Consume, at present, the improved procedure the most frequently used to Helmholtz resonator is to change its geometric parameter, such as neck length, transversal
Area, and cavity volume etc..
In addition, overwhelming majority earplug is all that sound insulation purpose is reached by completely cutting off sound wave now, this sound insulation is all passive
Sound insulation, effect is limited, and the ear of active sound-absorbing noise control can be produced if coordinating relative production technique again using sound-absorbing material
Plug.
The excellent sound absorbing capabilities of Static Spinning nano-porous materials come from its micro nano structure, are allowed under minimum thickness
The flow resistance close with the common sound absorption fibrous material of general thickness and sound absorption efficiency can be reached；Particularly conventional sound-absorbing material is difficult to
The energy of the low-frequency band of absorption, while substantially increasing the bandwidth of sound absorption frequency.Porous material sound-absorbing effect is important by aperture
Size, the penetrating degree influence of hole number and hole.In general, aperture is smaller, hole number is more, and hole is penetrating to connect more, sound-absorbing
Effect is better.
The content of the invention
It is an object of the invention to provide a kind of sound-absorbing acoustic insulating ear plug, it is applied to handle different noisy environments, had
The advantages of noise reduction frequency is wide, acoustically effective is good.
To reach above-mentioned purpose, the present invention provides following technical scheme：A kind of sound-absorbing acoustic insulating ear plug, its structure includes elasticity
Shell and shell interlayer two parts, elastic housing are made up of, shell using imitative Helmholtz resonator profile the neck of a cavity one
Porous sound absorbing material is filled with interlayer.
It is preferred that, enclosure cavity interior diameter D span is 0.4-1.2cm.
It is preferred that, enclosure cavity thickness of interlayer R span is 0.3-0.5cm.
It is preferred that, elastic housing neck interior diameter d span is 0.4-0.8cm.
It is preferred that, elastic housing neck length L span is 0.3-1cm.
It is preferred that, the porous sound absorbing material includes nanoparticle and fiber two parts, and the quantity of the nanoparticle is about
For 6 × 108Hole number on individual/cm2, single a diameter of 3-15 μm of nanoparticle, nanoparticle is 300-800, bore dia
For 80-1500nm, fibre diameter is 100-700nm.
Present invention also offers a kind of preparation method of sound-absorbing acoustic insulating ear plug, comprise the following steps：
S1：Spinning solution is prepared in units of quality in brown port grinding bottle, solvent is tetrahydrofuran and N-N dimethyl methyls
Acid amides, solute is polystyrene, and experimental situation temperature is 15-20 DEG C, and relative humidity is 50-60%, and the solution configured is put
2-4h is at the uniform velocity stirred on magnetic stirring apparatus, obtained spinning solution uniform to solution；
S2：The step S1 spinning solutions configured are poured into syringe, syringe are fixed on syringe pump, syringe
Jet and experiment receiver board connect the both positive and negative polarity of DC high-voltage power supply respectively, and receiver board is covered with aluminium foil, is opened syringe pump and is adjusted
Amount of restriction, starts spinning experiment, after experiment terminates, return to zero high pressure after opening high voltage power supply after solution slowly outflow and adjusting voltage
Power supply is simultaneously cut off the electricity supply, and removes collection porous sound absorbing material on receiver board aluminium foil；
S3：Imitative Helmholtz resonator shell is made using elastic silica gel or latex material；
S4：Porous sound absorbing material made from S2 is filled in into S3 to make in imitative Helmholtz resonator shell interlayer (2), system
Obtain acoustical absorption earplug.
It is preferred that, tetrahydrofuran and N-N dimethylformamides quality proportioning are 3 in step S1：1.
It is preferred that, spinning solution concentration is 30-35wt% in step S1.
It is preferred that, technological parameter is in step S2：Syringe jet internal diameter is 0.7mm, and capacity is 10ml, receiver board and
The distance between syringe jet is 20-35cm, and voltage regulation limits are 5-20kv, and flow rates are 0.3-0.8ml/h, note
Emitter jet internal diameter is 0.7mm, and capacity is 10ml.
The beneficial effects of the present invention are：Using imitative Helmholtz resonator shape shell and fill the porous nano of preparation
Microballoon makes the earplug of imitative Helmholtz resonator outward appearance, by adjusting sound-absorbing earplug appearance and size and porous sound absorbing material
Spinning parameter is provided simultaneously with suitable for handling different noisy environments, having the advantages that noise reduction frequency is wide, acoustically effective is good
Optimum prepares the raw material proportioning and experiment condition of porous sound absorbing material, and easy to operate, control is simple, technological process is short.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, below with presently preferred embodiments of the present invention and coordinate accompanying drawing describe in detail as after.
Brief description of the drawings
A kind of sound-absorbing acoustic insulating ear plug structural representation that Fig. 1 provides for the present invention；
Fig. 2 is porous sound absorbing material electron microscope.
Embodiment
With reference to the accompanying drawings and examples, the embodiment to the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
Fig. 1 is referred to, a kind of sound-absorbing acoustic insulating ear plug shown in one embodiment of the invention includes 2 liang of shell 1 and shell interlayer
Part, shell 1 is imitative Helmholtz resonator profile, is made up of the neck of a spheroidal cavity one, filled with many in shell interlayer 2
Hole sound-absorbing material.The porous sound absorbing material electron microscope is as shown in Figure 2.In the present embodiment, the material of shell 1 is elastic silica gel
Or latex material.Enclosure cavity interior diameter D span is 0.4-1.2cm.The relative enclosure cavity interlayer of neck opening is thick
The span for spending R is 0.3-0.5cm.Shell neck interior diameter d span is 0.4-0.8cm.Shell neck length L's
Span is 0.3-1cm, and the porous sound absorbing material includes nanoparticle and fiber two parts, the quantity of the nanoparticle
About 6 × 108Individual/cm2, single a diameter of 3-15 μm of nanoparticle, the hole number on nanoparticle is 300-800, bore dia
For 80-1500nm, fibre diameter is 100-700nm.
The preparation method of above-mentioned sound-absorbing acoustic insulating ear plug is illustrated below by three specific embodiments.
Embodiment 1
S1：Spinning solution solvent is configured in brown port grinding bottle in units of quality,
Spinning solution solvent is prepared in units of quality in brown port grinding bottle, solvent is tetrahydrofuran and N-N dimethyl
Formamide, solvent quality proportioning is tetrahydrofuran：N-N dimethylformamide=3：1, polystyrene is weighed as solute, is prepared
Spinning solution, the solution configured is placed on magnetic stirring apparatus and at the uniform velocity stirs 3h, control experimental situation temperature and relative humidity,
Uniform to solution, preparation solution concentration is 30wt% spinning solutions；
S2：The step S1 spinning solutions configured are poured into jet internal diameter for 0.7mm, capacity is 10ml syringe
In, syringe is fixed on syringe pump, syringe jet and experiment receiver board connect the positive and negative of DC high-voltage power supply respectively
Pole, receiver board is covered with aluminium foil, and the distance between receiver board and spinning head are adjusted to 35cm, and control experimental situation temperature is at 20 DEG C
Left and right, relative humidity voltage 10kv at 55% or so, regulation spinning, flow velocity is 0.4ml/h, is beaten after experimental provision inspection is errorless
Syringe pump regulation flow is opened, spinning experiment is started after opening high voltage power supply after solution slowly outflow and adjusting voltage.Treat experiment knot
Shu Hou, the high voltage power supply that returns to zero simultaneously is cut off the electricity supply, and then removes the fiber being collected on receiver board aluminium foil and fiber membrane product is obtained
Required porous sound absorbing material.
S3：Using flexible silica gel be material using D as 0.4cm, d is 0.4cm, and L is 0.3cm, and R is that 0.3cm presses Fig. 1 institutes
The schematic diagram shown makes elastic housing.
S4：The schematic diagram of obtained sound-absorbing material as shown in Figure 1 is filled in interlayer 2, acoustical absorption earplug is made.
Example 2
S1：In units of quality in brown port grinding bottle configure spinning solution solvent, in brown port grinding bottle using quality as
Unit prepares spinning solution solvent, and solvent is tetrahydrofuran and N-N dimethylformamides, and solvent quality proportioning is tetrahydrofuran：
N-N dimethylformamide=3：1, polystyrene is weighed as solute, prepares spinning solution, the solution configured is placed on magnetic force
3h, control experimental situation temperature and relative humidity are at the uniform velocity stirred on agitator, uniform to solution, preparation solution concentration is 35wt%
Spinning solution；
S2：The step S1 spinning solutions configured are poured into jet internal diameter for 0.7mm, capacity is 10ml syringe
In, syringe is fixed on syringe pump, syringe jet and experiment receiver board connect the positive and negative of DC high-voltage power supply respectively
Pole, receiver board is covered with aluminium foil, and the distance between receiver board and spinning head are adjusted to 25cm, and control experimental situation temperature is at 20 DEG C
Left and right, relative humidity voltage 10kv at 55% or so, regulation spinning, flow velocity is 0.4ml/h, is beaten after experimental provision inspection is errorless
Syringe pump regulation flow is opened, spinning experiment is started after opening high voltage power supply after solution slowly outflow and adjusting voltage.Treat experiment knot
Shu Hou, the high voltage power supply that returns to zero simultaneously is cut off the electricity supply, and then removes the fiber being collected on receiver board aluminium foil and fiber membrane product is obtained
Required porous sound absorbing material.
S3：Using flexible silica gel be material using D as 0.8cm, d is 0.6cm, and L is 0.5cm, and R is that 0.4cm presses Fig. 1 institutes
The schematic diagram shown makes elastic housing.
S4：The schematic diagram of obtained sound-absorbing material as shown in Figure 1 is filled in interlayer 2, acoustical absorption earplug is made.
Example 3
S1：In units of quality in brown port grinding bottle configure spinning solution solvent, in brown port grinding bottle using quality as
Unit prepares spinning solution solvent, and solvent is tetrahydrofuran and N-N dimethylformamides, and solvent quality proportioning is tetrahydrofuran：
N-N dimethylformamide=3：1, polystyrene is weighed as solute, prepares spinning solution, the solution configured is placed on magnetic force
3h, control experimental situation temperature and relative humidity are at the uniform velocity stirred on agitator, uniform to solution, preparation solution concentration is 35wt%
Spinning solution；
S2：The step S1 spinning solutions configured are poured into jet internal diameter for 0.7mm, capacity is 10ml syringe
In, syringe is fixed on syringe pump, syringe jet and experiment receiver board connect the positive and negative of DC high-voltage power supply respectively
Pole, receiver board is covered with aluminium foil, and the distance between receiver board and spinning head are adjusted to 20cm, and control experimental situation temperature is at 20 DEG C
Left and right, relative humidity voltage 10kv at 55% or so, regulation spinning, flow velocity is 0.4ml/h, is beaten after experimental provision inspection is errorless
Syringe pump regulation flow is opened, spinning experiment is started after opening high voltage power supply after solution slowly outflow and adjusting voltage.Treat experiment knot
Shu Hou, the high voltage power supply that returns to zero simultaneously is cut off the electricity supply, and then removes the fiber being collected on receiver board aluminium foil and fiber membrane product is obtained
Required porous sound absorbing material.
S3：Using flexible silica gel be material using D as 1cm, d is 0.8cm, and L is 0.8cm, R be 0.3cm as shown in Figure 1
Schematic diagram make elastic housing.
S4：The schematic diagram of obtained sound-absorbing material as shown in Figure 1 is filled in interlayer 2, acoustical absorption earplug is made.
Example 4
S1：In units of quality in brown port grinding bottle configure spinning solution solvent, in brown port grinding bottle using quality as
Unit prepares spinning solution solvent, and solvent is tetrahydrofuran and N-N dimethylformamides, and solvent quality proportioning is tetrahydrofuran：
N-N dimethylformamide=3：1, polystyrene is weighed as solute, prepares spinning solution, the solution configured is placed on magnetic force
3h, control experimental situation temperature and relative humidity are at the uniform velocity stirred on agitator, uniform to solution, preparation solution concentration is 30wt%
Spinning solution；
S2：The step S1 spinning solutions configured are poured into jet internal diameter for 0.7mm, capacity is 10ml syringe
In, syringe is fixed on syringe pump, syringe jet and experiment receiver board connect the positive and negative of DC high-voltage power supply respectively
Pole, receiver board is covered with aluminium foil, and the distance between receiver board and spinning head are adjusted to 20cm, and control experimental situation temperature is at 20 DEG C
Left and right, relative humidity voltage 10kv at 55% or so, regulation spinning, flow velocity is 0.4ml/h, is beaten after experimental provision inspection is errorless
Syringe pump regulation flow is opened, spinning experiment is started after opening high voltage power supply after solution slowly outflow and adjusting voltage.Treat experiment knot
Shu Hou, the high voltage power supply that returns to zero simultaneously is cut off the electricity supply, and then removes the fiber being collected on receiver board aluminium foil and fiber membrane product is obtained
Required porous sound absorbing material.
S3：Using flexible silica gel be material using D as 1.2cm, d is 0.4cm, and L is 1.0cm, and R is that 0.5cm presses Fig. 1 institutes
The schematic diagram shown makes elastic housing.
S4：The schematic diagram of obtained sound-absorbing material as shown in Figure 1 is filled in interlayer 2, acoustical absorption earplug is made.
In summary, using imitative Helmholtz resonator shape shell and fill the porous nano microballoon of preparation and make the imitative last of the twelve Earthly Branches
The earplug of Mu Huozi resonator outward appearances, by adjusting sound-absorbing earplug appearance and size and porous sound absorbing material spinning parameter to fit
The different noisy environment for handling, has the advantages that noise reduction frequency is wide, acoustically effective is good, while being prepared there is provided optimum many
The raw material proportioning and experiment condition of hole sound-absorbing material, easy to operate, control is simple, technological process is short.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Claims (10)
1. a kind of sound-absorbing acoustic insulating ear plug, including shell and shell interlayer two parts, it is characterised in that：The shell is imitative Hai Muhuo
Hereby resonator profile, is made up of the neck of a spheroidal cavity one, and porous sound absorbing material is filled with the shell interlayer.
2. a kind of sound-absorbing acoustic insulating ear plug as claimed in claim 1, it is characterised in that：The value of the enclosure cavity interior diameter D
Scope is 0.4-1.2cm.
3. a kind of sound-absorbing acoustic insulating ear plug as claimed in claim 1, it is characterised in that：The relative enclosure cavity of the neck opening
Thickness of interlayer R span is 0.3-0.5cm.
4. a kind of sound-absorbing acoustic insulating ear plug as claimed in claim 1, it is characterised in that：The value of the shell neck interior diameter d
Scope is 0.4-0.8cm.
5. a kind of sound-absorbing acoustic insulating ear plug as claimed in claim 1, it is characterised in that：The value model of the shell neck length L
Enclose for 0.3-1cm.
6. a kind of sound-absorbing acoustic insulating ear plug as claimed in claim 1, it is characterised in that：It is micro- that the porous sound absorbing material includes nanometer
Ball and fiber two parts, the quantity of the nanoparticle is about 6 × 108Individual/cm2, the single a diameter of 3-15 μ of nanoparticle
Hole number on m, the nanoparticle is 300-800, and bore dia is 80-1500nm, and fibre diameter is 100-700nm.
7. a kind of preparation method of sound-absorbing acoustic insulating ear plug, it is characterised in that：Comprise the following steps：
S1：Spinning solution is prepared in units of quality in brown port grinding bottle, solvent is tetrahydrofuran and N-N dimethyl formyls
Amine, solute is polystyrene, and experimental situation temperature is 15-20 DEG C, and relative humidity is 50-60%, and the solution configured is placed on
2-4h is at the uniform velocity stirred on magnetic stirring apparatus, obtained spinning solution uniform to solution；
S2：The step S1 spinning solutions configured are poured into jet internal diameter for 0.7mm, capacity, will in 10ml syringe
Syringe is fixed on syringe pump, and syringe jet and receiver board connect the both positive and negative polarity of DC high-voltage power supply, receiver board respectively
Covered with aluminium foil, open syringe pump regulation flow, electrostatic is started after opening high voltage power supply after solution slowly outflow and adjusting voltage
Spinning, after terminating, the high voltage power supply that returns to zero simultaneously is cut off the electricity supply, and removes collection porous sound absorbing material on receiver board aluminium foil；
S3：Imitative Helmholtz resonator shell is made using elastic silica gel or latex material；
S4：Porous sound absorbing material made from S2 is filled in into S3 to make in imitative Helmholtz resonator shell interlayer (2), is made and inhales
Sound earplug.
8. a kind of preparation method of sound-absorbing acoustic insulating ear plug as claimed in claim 7, it is characterised in that：Tetrahydrofuran in step S1
It is 3 with N-N dimethylformamides quality proportioning：1.
9. a kind of preparation method of sound-absorbing acoustic insulating ear plug as claimed in claim 7, it is characterised in that：Spinning solution in step S1
Concentration is 30-35wt%.
10. a kind of preparation method of sound-absorbing acoustic insulating ear plug as claimed in claim 7, it is characterised in that：Work in the step S2
Skill parameter is：The distance between receiver board and syringe jet are 20-35cm, and voltage regulation limits are 5-20kv, flow velocity model
Enclose for 0.3-0.8ml/h, syringe jet internal diameter is 0.7mm, and capacity is 10ml.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710282879.7A CN106963551A (en) | 2017-04-26 | 2017-04-26 | Sound-absorbing and sound-insulating earplug and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710282879.7A CN106963551A (en) | 2017-04-26 | 2017-04-26 | Sound-absorbing and sound-insulating earplug and manufacturing method thereof |
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| CN106963551A true CN106963551A (en) | 2017-07-21 |
Family
ID=59332641
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710282879.7A Pending CN106963551A (en) | 2017-04-26 | 2017-04-26 | Sound-absorbing and sound-insulating earplug and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945325A (en) * | 2019-02-27 | 2019-06-28 | 佛山市顺德区美的电子科技有限公司 | The control method of silencer, air conditioner and air conditioner |
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|---|---|---|---|---|
| CN2168316Y (en) * | 1993-04-08 | 1994-06-08 | 秦丽贤 | Noice-damping talk-listen type earcover |
| CN2202515Y (en) * | 1994-11-06 | 1995-07-05 | 于维成 | Combined simple noise-proof ear bag body |
| CN201319658Y (en) * | 2008-09-17 | 2009-09-30 | 郑国书 | Headset with sound box function |
| CN101807394A (en) * | 2010-04-13 | 2010-08-18 | 王艳 | Micro-nano-fiber composite layered sound-absorbing material |
| CN104735569A (en) * | 2013-12-19 | 2015-06-24 | 深圳富泰宏精密工业有限公司 | Earphone device |
| CN106087251A (en) * | 2016-08-23 | 2016-11-09 | 苏州大学 | A kind of preparation method of porous microsphere sound-absorbing material |
-
2017
- 2017-04-26 CN CN201710282879.7A patent/CN106963551A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2168316Y (en) * | 1993-04-08 | 1994-06-08 | 秦丽贤 | Noice-damping talk-listen type earcover |
| CN2202515Y (en) * | 1994-11-06 | 1995-07-05 | 于维成 | Combined simple noise-proof ear bag body |
| CN201319658Y (en) * | 2008-09-17 | 2009-09-30 | 郑国书 | Headset with sound box function |
| CN101807394A (en) * | 2010-04-13 | 2010-08-18 | 王艳 | Micro-nano-fiber composite layered sound-absorbing material |
| CN104735569A (en) * | 2013-12-19 | 2015-06-24 | 深圳富泰宏精密工业有限公司 | Earphone device |
| CN106087251A (en) * | 2016-08-23 | 2016-11-09 | 苏州大学 | A kind of preparation method of porous microsphere sound-absorbing material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945325A (en) * | 2019-02-27 | 2019-06-28 | 佛山市顺德区美的电子科技有限公司 | The control method of silencer, air conditioner and air conditioner |
| CN109945325B (en) * | 2019-02-27 | 2021-11-02 | 佛山市顺德区美的电子科技有限公司 | Silencer, air conditioner and control method of air conditioner |
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Application publication date: 20170721 |
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