JPS57192200A - Speaker - Google Patents

Speaker

Info

Publication number
JPS57192200A
JPS57192200A JP7719781A JP7719781A JPS57192200A JP S57192200 A JPS57192200 A JP S57192200A JP 7719781 A JP7719781 A JP 7719781A JP 7719781 A JP7719781 A JP 7719781A JP S57192200 A JPS57192200 A JP S57192200A
Authority
JP
Japan
Prior art keywords
voice coil
bobbin
cap
radiator
durability
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
Application number
JP7719781A
Other languages
Japanese (ja)
Inventor
Koshin Shimada
Hideo Takei
Nobumitsu Matsumura
Morio Iwasaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP7719781A priority Critical patent/JPS57192200A/en
Publication of JPS57192200A publication Critical patent/JPS57192200A/en
Pending legal-status Critical Current

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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/022—Cooling arrangements

Landscapes

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

Abstract

PURPOSE:To improve the durability of a voice coil against the rise of temperature, by dissipating a heat generated in the voice coil efficiently through the provision of a radiator for the voice coil bobbin. CONSTITUTION:A cap 12 made of a material of high thermal conductivity such as Al is fitted to the bobbin 4 so that the opening of the tip of the bobbin 4 is closed. Thus, the cap 12 is utilized as a radiator, the heat generated in a voice coil 5 is dissipated via the bobbin 4 and the cap 12, allowing to improve the durability of the voice coil 5 against the rising temperature.
JP7719781A 1981-05-20 1981-05-20 Speaker Pending JPS57192200A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7719781A JPS57192200A (en) 1981-05-20 1981-05-20 Speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7719781A JPS57192200A (en) 1981-05-20 1981-05-20 Speaker

Publications (1)

Publication Number Publication Date
JPS57192200A true JPS57192200A (en) 1982-11-26

Family

ID=13627090

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7719781A Pending JPS57192200A (en) 1981-05-20 1981-05-20 Speaker

Country Status (1)

Country Link
JP (1) JPS57192200A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1401239A3 (en) * 2002-09-18 2005-08-24 Bose Corporation Heat Transfer in Audio Device
KR100692256B1 (en) 2005-07-19 2007-03-14 주식회사 블루콤 Heat emission structure of micro-speaker
EP1455553A3 (en) * 2003-03-06 2007-08-15 Peavey Electronics Corp. Methods and apparatus for dissipating heat in a voice coil

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1401239A3 (en) * 2002-09-18 2005-08-24 Bose Corporation Heat Transfer in Audio Device
US7120270B2 (en) 2002-09-18 2006-10-10 Bose Corporation Audio device heat transferring
US7340066B2 (en) 2002-09-18 2008-03-04 Bose Corporation Audio device heat transferring
EP1455553A3 (en) * 2003-03-06 2007-08-15 Peavey Electronics Corp. Methods and apparatus for dissipating heat in a voice coil
KR100692256B1 (en) 2005-07-19 2007-03-14 주식회사 블루콤 Heat emission structure of micro-speaker

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