JP2012195928A - 防水通音膜および電気製品 - Google Patents
防水通音膜および電気製品 Download PDFInfo
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- JP2012195928A JP2012195928A JP2011274086A JP2011274086A JP2012195928A JP 2012195928 A JP2012195928 A JP 2012195928A JP 2011274086 A JP2011274086 A JP 2011274086A JP 2011274086 A JP2011274086 A JP 2011274086A JP 2012195928 A JP2012195928 A JP 2012195928A
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- resin film
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- 230000035699 permeability Effects 0.000 claims abstract description 14
- 239000012528 membrane Substances 0.000 claims description 61
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 10
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- 229920001721 polyimide Polymers 0.000 claims description 4
- 239000002033 PVDF binder Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 229920000515 polycarbonate Polymers 0.000 claims description 3
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- 239000011112 polyethylene naphthalate Substances 0.000 claims description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 3
- 239000005871 repellent Substances 0.000 claims description 3
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 20
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- 238000011156 evaluation Methods 0.000 description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 6
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- 239000004698 Polyethylene Substances 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
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- 229920003235 aromatic polyamide Polymers 0.000 description 1
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 description 1
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- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
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- 238000010998 test method Methods 0.000 description 1
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Images
Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/24—Methods or devices for transmitting, conducting or directing sound for conducting sound through solid bodies, e.g. wires
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/002—Devices for damping, suppressing, obstructing or conducting sound in acoustic devices
-
- 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
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
-
- 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
-
- 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
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
- H04R1/083—Special constructions of mouthpieces
- H04R1/086—Protective screens, e.g. all weather or wind screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/10—Properties of the layers or laminate having particular acoustical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/726—Permeability to liquids, absorption
- B32B2307/7265—Non-permeable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Laminated Bodies (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
【解決手段】防水通音膜1は、複数の貫通孔21が形成された樹脂フィルム2と、樹脂フィルム2の厚さ方向の両面のうちの少なくとも一方の面上に、貫通孔21と対応する位置に開口31を有するように形成された、撥水性を有する処理層3と、を備えている。防水通音膜1の通気度は、ガーレー数で表示して100秒/100mL以下である。
【選択図】図1
Description
ダイヤルゲージを用いて防水通音膜の厚さを測定した。
PMI社製パームポロメータを用いて防水通音膜の孔径分布を測定し、平均孔径を算出した。
防水通音膜をポンチでφ20mmに打ち抜いた後に、打ち抜かれた防水通音膜の質量を測定し、これを1m2あたりの質量に換算した。
まず、面密度に厚さをかけて見かけ密度を求め、この見かけ密度と材料密度を使用して以下の式から防水通音膜の気孔率を求めた。材料密度は、PET:1.4g/cm3、PTFE:2.2g/cm3とした。
{1−(見かけ密度/材料密度)}×100
JIS P8117(ガーレー試験法)に準拠して、防水通音膜のガーレー数(所定の圧力を加えたときに、体積100mLの空気が防水通音膜を通過するのに必要な時間)を測定した。
図3に示すように、まず、長さ70mm、幅50mm、高さ15mmのアクリル性の模擬筐体を準備し、この模擬筐体にφ13mmの開口を形成した。ついで、防水通音膜をφ16mmに打ち抜き、この防水通音膜を、外径16mm、内径13mmのリング状の両面テープを用いて、模擬筐体の内面に開口を塞ぐように貼り付けた。さらに、防水通音膜の裏面に、同様の両面テープを用いてスピーカー(スター精密社製、SCC-16A)を貼り付けた。
図4(a)に示すように、φ20mmの穴が設けられたSUS板の表面に接着剤を用いて防水通音膜を貼り付けた。その後、図4(b)に示すように、SUS板の裏側から水圧をかけて、その状態を30分間維持して耐圧試験を行った。耐圧試験は、水圧を水深1m相当の10kPaに設定した条件と、その2倍の20kPaに設定した条件の2つの条件下で行った。その後、防水通音膜の最大膨らみ量(SUS板の表面から防水通音膜の頂点までの距離)を変形量として測定した。
樹脂フィルムとして、PETからなる無孔のベースシートに、イオンビーム照射およびエッチングにより複数の貫通孔を形成した市販品A(オキシフェン社製Oxydisk)を用いた。
樹脂フィルムとして、PETからなる無孔のベースシートに、イオンビーム照射およびエッチングにより市販品Aよりも大きな複数の貫通孔を形成した市販品B(オキシフェン社製Oxydisk)を用いた以外は実施例1と同様にして防水通音膜を得た。
樹脂フィルムとして、PETからなる無孔のベースシートに、イオンビーム照射およびエッチングにより市販品Bよりもさらに大きな複数の貫通孔を形成した市販品C(オキシフェン社製Oxydisk)を用いた以外は実施例1と同様にして防水通音膜を得た。
樹脂フィルムの代わりにPETからなる無孔のシートを用いた以外は実施例1と同様にして防水通音膜を得た。
樹脂フィルムの代わりにPTFEからなるシートを延伸させた薄い多孔質膜を用いた以外は実施例1と同様にして防水通音膜を得た。
樹脂フィルムの代わりにPTFEからなるシートを延伸させた薄い多孔質膜を用いた以外は実施例1と同様にして防水通音膜を得た。
樹脂フィルムとして、PETからなる無孔のベースシートに、イオンビーム照射およびエッチングにより市販品Aよりも密度の小さい複数の貫通孔を形成した市販品D(オキシフェン社製Oxydisk)を用いた以外は実施例1と同様にして防水通音膜を得た。
Claims (7)
- 厚さ方向に貫通する複数の貫通孔が形成された中実の樹脂フィルムと、
前記樹脂フィルムの厚さ方向の両面のうちの少なくとも一方の面上に、前記複数の貫通孔と対応する位置に開口を有するように形成された、撥水性を有する処理層と、を備え、
通気度がガーレー数で表示して100秒/100mL以下である、
防水通音膜。 - JIS L1092−B(高水圧法)に準拠して測定した耐水圧が10kPa以上である、請求項1に記載の防水通音膜。
- 前記処理層は、撥油性をも有している、請求項1または2に記載の防水通音膜。
- 前記樹脂フィルムは、加水分解する樹脂および酸化分解する樹脂の少なくとも一方からなる、請求項1〜3のいずれか一項に記載の防水通音膜。
- 前記樹脂フィルムは、ポリエチレンテレフタレート、ポリカーボネート、ポリイミド、ポリエチレンナフタレートおよびポリフッ化ビニリデンから選ばれる少なくとも1種からなる、請求項4に記載の防水通音膜。
- 前記樹脂フィルムに積層された通気性支持材をさらに備える、請求項1〜5のいずれか一項に記載の防水通音膜。
- 音響装置を収容し、音を透過させるための開口が設けられた筐体と、
前記開口を塞ぐように前記筐体に貼り付けられた、請求項1〜6のいずれか一項に記載の防水通音膜と、
を備える、電気製品。
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JP2011274086A JP5872276B2 (ja) | 2011-03-03 | 2011-12-15 | 防水通音膜および電気製品 |
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JP2012195928A true JP2012195928A (ja) | 2012-10-11 |
JP5872276B2 JP5872276B2 (ja) | 2016-03-01 |
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US (1) | US9171535B2 (ja) |
EP (1) | EP2683176B1 (ja) |
JP (1) | JP5872276B2 (ja) |
KR (1) | KR101899183B1 (ja) |
CN (1) | CN103404166B (ja) |
TW (1) | TW201238362A (ja) |
WO (1) | WO2012117476A1 (ja) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014207590A (ja) * | 2013-04-15 | 2014-10-30 | 日東電工株式会社 | 防水通音膜およびその製造方法、ならびに防水通音部材 |
WO2015029302A1 (ja) | 2013-08-30 | 2015-03-05 | 日東電工株式会社 | 防水通音膜と、それを備える防水通音部材、電子機器、電子機器用ケースおよび防水通音構造 |
WO2015029451A1 (ja) | 2013-08-30 | 2015-03-05 | 日東電工株式会社 | 防水通気膜とそれを備える防水通気部材および防水通気構造ならびに防水通音膜 |
JP2016100813A (ja) * | 2014-11-25 | 2016-05-30 | 日東電工株式会社 | 防水通音膜と、それを備える防水通音部材、電子機器、電子機器用ケースおよび防水通音構造 |
WO2016136234A1 (ja) * | 2015-02-27 | 2016-09-01 | 日東電工株式会社 | 音響抵抗体と、それを備える音響抵抗体部材および音響機器 |
WO2016136233A1 (ja) * | 2015-02-26 | 2016-09-01 | 日東電工株式会社 | 防水通音構造と、それを備える電子機器および電子機器用ケース |
KR20160104687A (ko) | 2014-01-13 | 2016-09-05 | 세이렌가부시끼가이샤 | 통음 방수막 및 그 제조 방법 |
WO2016174871A1 (ja) * | 2015-04-30 | 2016-11-03 | 日東電工株式会社 | 高分子樹脂フィルムとこれを備える通気膜、通音膜、音響抵抗体、通気膜部材、通音膜部材、音響抵抗体部材および音響機器ならびに高分子樹脂フィルムの製造方法 |
KR20160135572A (ko) * | 2015-05-18 | 2016-11-28 | 연세대학교 산학협력단 | 통기성 전자기기 |
WO2017006510A1 (ja) * | 2015-07-09 | 2017-01-12 | 日東電工株式会社 | 樹脂フィルム |
KR20170059461A (ko) | 2014-09-24 | 2017-05-30 | 닛토덴코 가부시키가이샤 | 고분자 필름, 방수 통음 막, 방수 통음 부재, 전자 기기, 전자 기기용 케이스, 방수 통음 구조, 방수 통기 막, 방수 통기 부재, 방수 통기 구조, 흡착용 시트, 흡착 유닛에의 작업 대상물의 흡착 방법, 세라믹 콘덴서의 제조 방법, 광학 필름, 광학 부재 및 조성물 |
US9875733B2 (en) | 2013-10-15 | 2018-01-23 | Donaldson Company, Inc. | Microporous membrane laminate for acoustic venting |
Families Citing this family (46)
Publication number | Priority date | Publication date | Assignee | Title |
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Also Published As
Publication number | Publication date |
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CN103404166B (zh) | 2017-05-31 |
WO2012117476A1 (ja) | 2012-09-07 |
EP2683176A1 (en) | 2014-01-08 |
KR101899183B1 (ko) | 2018-09-14 |
US20130333978A1 (en) | 2013-12-19 |
EP2683176A4 (en) | 2014-09-24 |
TW201238362A (en) | 2012-09-16 |
EP2683176B1 (en) | 2020-06-17 |
KR20140010124A (ko) | 2014-01-23 |
JP5872276B2 (ja) | 2016-03-01 |
CN103404166A (zh) | 2013-11-20 |
US9171535B2 (en) | 2015-10-27 |
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