JP4891465B1 - 動電型放音体 - Google Patents
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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
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
- G10K9/13—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using electromagnetic driving means
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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
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/023—Screens for 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
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/025—Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
-
- 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
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2807—Enclosures comprising vibrating or resonating arrangements
- H04R1/2811—Enclosures comprising vibrating or resonating arrangements for loudspeaker transducers
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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
- H04R2207/00—Details of diaphragms or cones for electromechanical transducers or their suspension covered by H04R7/00 but not provided for in H04R7/00 or in H04R2307/00
- H04R2207/021—Diaphragm extensions, not necessarily integrally formed, e.g. skirts, rims, flanges
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2231/00—Details of apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor covered by H04R31/00, not provided for in its subgroups
- H04R2231/003—Manufacturing aspects of the outer suspension of loudspeaker or microphone diaphragms or of their connecting aspects to said diaphragms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
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- H—ELECTRICITY
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- H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
- H04R2307/201—Damping aspects of the outer suspension of loudspeaker diaphragms by addition of additional damping means
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- H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
- H04R2307/207—Shape aspects of the outer suspension of loudspeaker diaphragms
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- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/13—Acoustic transducers and sound field adaptation in vehicles
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- H04R7/06—Plane diaphragms comprising a plurality of sections or layers
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- H04R7/16—Mounting or tensioning of diaphragms or cones
- H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
- H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands
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- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Multimedia (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
アウターヨーク(1)を覆うケース(4)を備え、このケースと振動板(8)とアウターヨークの側壁外面とにより音響空間(22)を形成し、ケース外周部と振動板外周部との間を隙間なく連結する第二弾性部材(10)を備え、この第二弾性部材は発泡により空洞部を有しかつ第一弾性部材(9)よりも弾性率が小さい材料で形成されており、第二弾性部材のケース内部側となる裏面と、この裏面の反対面である表面との間を連通する空洞部が無いようにした。
【選択図】図1
Description
図1は、本発明の実施の形態1による動電型放音体の構成を示す模式的な断面図である。また、図2は、図1の動電型放音体の外観図であり、図2(A)が正面図、図2(B)が下面図である。図2に示すように、この動電型放音体の全体形状は円形状である。図1において、底と円筒状の側壁とを有する形状に形成され磁性材料からなるアウターヨーク1の内底部に、円柱形状のマグネット2の片端磁極側がアウターヨーク1と同軸状に接着されている。また、磁性材料からなる円柱状のインナーヨーク3が、マグネット2の他端磁極側に、アウターヨーク1やマグネット2と同軸状に接着されている。これらアウターヨーク1、マグネット2、及びインナーヨーク3、によって磁気回路部100が構成されている。以下、図1に一点鎖線で示す、円筒状や円柱状の部品で構成された磁気回路部100の中心軸20の方向を軸方向と呼ぶ。
図7は、本発明の実施の形態2による動電型放音体の構成を示す模式的な断面図であり、図中図1と同一符号は同一または相当する部分を示す。本実施の形態2においては、振動板8の外周縁部に、例えば折り曲げなどにより、軸方向に延在するフランジ部8aを設けた。このフランジ部8aの外周面と円環状の第二弾性部材10の内周面とを接着部10dとして、両者を接着固定している。また、第二弾性部材10の外周部はケース4とフロントカバー11の嵌合わせ部11aによって挟み込み支持されている。
図9及び図10は、本発明の実施の形態3による動電型放音体の構成を示す模式的な断面図であり、図中、図1および図7と同一符号は同一または相当する部分を示す。振動板8の外周縁部に軸方向に延在するフランジ部8aの外周面と円環状の第二弾性部材10の内周面とを接着部10dとして、両者が接着固定されており、また、第二弾性部材10の外周部はケース4とフロントカバー11の嵌合わせ部11aによって挟み込み支持されている。
3:インナーヨーク 4:ケース
5:磁気ギャップ 6:ボビン
7:コイル 8:振動板
9:第一弾性部材 10:第二弾性部材
10b:空洞部 10c:スキン層
11:フロントカバー 11a:フロントカバーの嵌合わせ部
11b:開口部 12:ハーネス部
22:音響空間 100:磁気回路部
Claims (6)
- 底部及び側壁部を有する形状のアウターヨークと、前記アウターヨークに囲まれて配置されたマグネットとインナーヨークとを含む磁気回路部と、
前記磁気回路部に形成された磁気ギャップ内に配設されたコイルと、
前記コイルが固定された振動板と、
前記振動板と前記アウターヨークの側壁部とを弾性的に連結する第一弾性部材と、を備えた動電型放音体であって、
前記アウターヨークを覆うケースを備え、このケースと前記振動板と前記アウターヨークの側壁外面とにより音響空間を形成し、前記ケース外周部と前記振動板外周部との間を隙間なく連結する第二弾性部材を備え、この第二弾性部材は発泡により空洞部を有しかつ前記第一弾性部材よりも弾性率が小さい材料で形成されており、前記第二弾性部材の前記ケース内部側となる裏面と、この裏面の反対面である表面との間を連通する前記空洞部が無いことを特徴とする動電型放音体。 - 前記第二弾性部材は、表面または裏面の全面に、通気性の無い薄層状のスキン層を有することを特徴とする請求項1に記載の動電型放音体。
- 前記第二弾性部材は円環状であり、前記振動板の周縁部に、前記磁気回路部の軸方向に延在するフランジ部を設け、このフランジ部の外周面と前記第二弾性部材の円環内周面とを接合したことを特徴とする請求項1または請求項2に記載の動電型放音体。
- 前記振動板を覆い、前記振動板から発生する音を通過させる開口部を有するフロントカバーを備え、このフロントカバーの周縁部と前記ケースの周縁部とを嵌め合わせにより固着するとともに、前記第二弾性部材の周縁部を、前記嵌め合わせと共に挟み込むことを特徴とする請求項1乃至請求項3のいずれか1項に記載の動電型放音体。
- 前記第二弾性部材の円環の厚みが、前記振動板のフランジ部の軸方向寸法よりも厚く設定され、前記振動板が変位することにより、前記フランジ部の外周の少なくとも一部が、前記ケースの嵌め合わせ部の内周に当接可能となる寸法に構成されていることを特徴とする請求項3に記載の動電型放音体。
- 前記振動板が変位することにより、前記フランジ部の外周の少なくとも一部が、前記ケースの嵌め合わせ部の内周に当接可能となる寸法に構成されている部分に位置する前記第二弾性部材が、少なくとも一部、前記フランジ部の軸方向端部と前記ケースの間に介在するように設けられたことを特徴とする請求項5に記載の動電型放音体。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2011/068114 WO2013021455A1 (ja) | 2011-08-09 | 2011-08-09 | 動電型放音体 |
Related Child Applications (1)
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JP2011274002A Division JP5124043B1 (ja) | 2011-12-15 | 2011-12-15 | 動電型放音体 |
Publications (2)
Publication Number | Publication Date |
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JP4891465B1 true JP4891465B1 (ja) | 2012-03-07 |
JPWO2013021455A1 JPWO2013021455A1 (ja) | 2015-03-05 |
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JP2011543019A Expired - Fee Related JP4891465B1 (ja) | 2011-08-09 | 2011-08-09 | 動電型放音体 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8724843B2 (ja) |
JP (1) | JP4891465B1 (ja) |
CN (1) | CN103053178B (ja) |
DE (1) | DE112011100525B4 (ja) |
WO (1) | WO2013021455A1 (ja) |
Cited By (1)
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CN105611472A (zh) * | 2011-11-09 | 2016-05-25 | 礼一电子有限公司 | 移动设备的声响处理单元固定结构 |
CN203206462U (zh) * | 2013-04-05 | 2013-09-18 | 瑞声科技(南京)有限公司 | 振动发声装置 |
KR101519265B1 (ko) * | 2013-12-18 | 2015-05-11 | 현대자동차주식회사 | 차량의 사운드제너레이터 |
US9686615B2 (en) * | 2014-10-24 | 2017-06-20 | Taiyo Yuden Co., Ltd. | Electroacoustic converter and electronic device |
US9762992B2 (en) * | 2015-05-08 | 2017-09-12 | Kabushiki Kaisha Audio-Technica | Condenser microphone unit, condenser microphone, and method of manufacturing condenser microphone unit |
CN107071662A (zh) * | 2017-03-23 | 2017-08-18 | 惠州超声音响有限公司 | 一种一体式低压注塑成型的音箱结构 |
KR101795793B1 (ko) | 2017-03-29 | 2017-12-01 | 평화산업주식회사 | 차량용 액티브 사운드 제네레이터 |
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- 2011-08-09 WO PCT/JP2011/068114 patent/WO2013021455A1/ja active Application Filing
- 2011-08-09 CN CN201180004803.9A patent/CN103053178B/zh not_active Expired - Fee Related
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US8724843B2 (en) | 2014-05-13 |
WO2013021455A1 (ja) | 2013-02-14 |
DE112011100525T5 (de) | 2013-05-08 |
US20130039526A1 (en) | 2013-02-14 |
DE112011100525B4 (de) | 2013-11-21 |
CN103053178A (zh) | 2013-04-17 |
JPWO2013021455A1 (ja) | 2015-03-05 |
CN103053178B (zh) | 2015-08-05 |
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