WO2009038084A1 - 振動板及びこれを備えたスピーカ - Google Patents

振動板及びこれを備えたスピーカ Download PDF

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Publication number
WO2009038084A1
WO2009038084A1 PCT/JP2008/066760 JP2008066760W WO2009038084A1 WO 2009038084 A1 WO2009038084 A1 WO 2009038084A1 JP 2008066760 W JP2008066760 W JP 2008066760W WO 2009038084 A1 WO2009038084 A1 WO 2009038084A1
Authority
WO
WIPO (PCT)
Prior art keywords
diaphragm
denoted
major
length
piece
Prior art date
Application number
PCT/JP2008/066760
Other languages
English (en)
French (fr)
Inventor
Kazuyuki Kosuda
Yoshiko Koda
Original Assignee
Sanyo Electric Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co., Ltd. filed Critical Sanyo Electric Co., Ltd.
Priority to EP08832421A priority Critical patent/EP2202999A1/en
Priority to CN200880107817A priority patent/CN101855916A/zh
Publication of WO2009038084A1 publication Critical patent/WO2009038084A1/ja
Priority to US12/678,438 priority patent/US20100284562A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

【課題】長径方向における振動板片の端部に不要な凹みが生じることを抑制して、スピーカの発する音に歪みが発生することを低減することができる振動板及びこれを備えたスピーカを提供する 【解決手段】振動板４は、長径αと短径βとが異なる非円形状であって、振動板片４ａを備える。そして、長径方向Ｘにおける振動板片４ａの長さγを２ａ、短径方向Ｙにおける振動板片４ａの長さδを２ｂ、長径方向Ｘにおける振動板４の中心Ｏから振動板片４ａの外周４２ａまでの長さｓをｘ、短径方向Ｙにおける振動板４の中心Ｏから振動板片４ａの外周４２ａまでの長さｔをｙとした場合、振動板片４ａの外周４２ａの形状が、以下の数式１を満たすように形成されている。
PCT/JP2008/066760 2007-09-21 2008-09-17 振動板及びこれを備えたスピーカ WO2009038084A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP08832421A EP2202999A1 (en) 2007-09-21 2008-09-17 Diaphragm and speaker including same
CN200880107817A CN101855916A (zh) 2007-09-21 2008-09-17 振动板和具备该振动板的扬声器
US12/678,438 US20100284562A1 (en) 2007-09-21 2009-09-17 Diaphragm and speaker including same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-246073 2007-09-21
JP2007246073A JP5178108B2 (ja) 2007-09-21 2007-09-21 振動板及びこれを備えたスピーカ

Publications (1)

Publication Number Publication Date
WO2009038084A1 true WO2009038084A1 (ja) 2009-03-26

Family

ID=40467894

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/066760 WO2009038084A1 (ja) 2007-09-21 2008-09-17 振動板及びこれを備えたスピーカ

Country Status (6)

Country Link
US (1) US20100284562A1 (ja)
EP (1) EP2202999A1 (ja)
JP (1) JP5178108B2 (ja)
CN (1) CN101855916A (ja)
TW (1) TW200922363A (ja)
WO (1) WO2009038084A1 (ja)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0434633Y2 (ja) * 1982-05-08 1992-08-18
JPH1094088A (ja) * 1996-09-19 1998-04-10 Matsushita Electric Ind Co Ltd スピーカ
JP2005198342A (ja) * 1995-09-02 2005-07-21 New Transducers Ltd ラウドスピーカ

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3471447B2 (ja) * 1994-11-16 2003-12-02 日本碍子株式会社 セラミックダイヤフラム構造体およびその製造方法
CN1655645A (zh) * 1995-09-02 2005-08-17 新型转换器有限公司 扬声器以及使用扬声器的设备
US6003766A (en) * 1995-09-02 1999-12-21 New Transducers Limited Vending machine
JP3874183B2 (ja) * 2002-05-21 2007-01-31 フォスター電機株式会社 電気音響変換器用振動板
EP1571876A4 (en) * 2003-12-22 2010-05-12 Panasonic Corp SPEAKER AND DEVICE WITH SUCH A SPEAKER
JP2005184588A (ja) * 2003-12-22 2005-07-07 Matsushita Electric Ind Co Ltd スピーカおよびこれを用いた電子機器
JP2006287418A (ja) * 2005-03-31 2006-10-19 Pioneer Electronic Corp スピーカ装置
KR101156366B1 (ko) * 2005-05-25 2012-06-13 놀레스 일렉트로닉스 아시아 피티이 리미티드 멤브레인, 이를 포함하는 트랜스듀서 및 트랜스듀서를 포함하는 장치

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0434633Y2 (ja) * 1982-05-08 1992-08-18
JP2005198342A (ja) * 1995-09-02 2005-07-21 New Transducers Ltd ラウドスピーカ
JPH1094088A (ja) * 1996-09-19 1998-04-10 Matsushita Electric Ind Co Ltd スピーカ

Also Published As

Publication number Publication date
CN101855916A (zh) 2010-10-06
JP5178108B2 (ja) 2013-04-10
TW200922363A (en) 2009-05-16
JP2009077300A (ja) 2009-04-09
EP2202999A1 (en) 2010-06-30
US20100284562A1 (en) 2010-11-11

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