WO2001031975A3 - Ultra low frequency transducer and loud speaker comprising same - Google Patents

Ultra low frequency transducer and loud speaker comprising same Download PDF

Info

Publication number
WO2001031975A3
WO2001031975A3 PCT/US2000/041347 US0041347W WO0131975A3 WO 2001031975 A3 WO2001031975 A3 WO 2001031975A3 US 0041347 W US0041347 W US 0041347W WO 0131975 A3 WO0131975 A3 WO 0131975A3
Authority
WO
WIPO (PCT)
Prior art keywords
diaphragm
low frequency
ultra low
frequency transducer
same
Prior art date
Application number
PCT/US2000/041347
Other languages
French (fr)
Other versions
WO2001031975A2 (en
Inventor
Steven M Irby
William O Doering
Original Assignee
Stillwater Designs & Audio Inc
Steven M Irby
William O Doering
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 Stillwater Designs & Audio Inc, Steven M Irby, William O Doering filed Critical Stillwater Designs & Audio Inc
Priority to BR0014849-0A priority Critical patent/BR0014849A/en
Priority to CA002387939A priority patent/CA2387939C/en
Priority to JP2001533798A priority patent/JP2003515266A/en
Priority to MXPA02003983A priority patent/MXPA02003983A/en
Priority to AU21182/01A priority patent/AU773216B2/en
Priority to ES00984582T priority patent/ES2387385T3/en
Priority to EP00984582A priority patent/EP1222839B1/en
Publication of WO2001031975A2 publication Critical patent/WO2001031975A2/en
Publication of WO2001031975A3 publication Critical patent/WO2001031975A3/en
Priority to AU2004205159A priority patent/AU2004205159B2/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
    • H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers
    • 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
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • 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
    • 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
    • H04R2307/029—Diaphragms comprising fibres
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • 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
    • H04R2307/204—Material aspects of the outer suspension of loudspeaker diaphragms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • 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
    • 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
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/046—Construction

Landscapes

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

Abstract

An ultra low frequency transducer or subwoofer for automotive speaker systems with a concave diaphragm and a pleated surround. Preferably, the periphery of the diaphragm is square or rectangular and sized to be substantially coextensive with the front of the speaker housing or cabinet. In this way, air displacement in the subwoofer is maximized for a given size of enclosure, and thus so is the loudness of the speaker. The transducer typically includes a frame or basket with a square front for supporting the periphery of the diaphragm. The preferred diaphragm includes a convex surround with pleated corners. For increased durability, trusses are formed in the diaphragm.
PCT/US2000/041347 1999-10-22 2000-10-20 Ultra low frequency transducer and loud speaker comprising same WO2001031975A2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
BR0014849-0A BR0014849A (en) 1999-10-22 2000-10-20 Ultra-wide frequency transducer and speaker comprising the same
CA002387939A CA2387939C (en) 1999-10-22 2000-10-20 Ultra low frequency transducer and loud speaker comprising same
JP2001533798A JP2003515266A (en) 1999-10-22 2000-10-20 Ultra low frequency transducer and loudspeaker having the same
MXPA02003983A MXPA02003983A (en) 1999-10-22 2000-10-20 Ultra low frequency transducer and loud speaker comprising same.
AU21182/01A AU773216B2 (en) 1999-10-22 2000-10-20 Ultra low frequency transducer and loud speaker comprising same
ES00984582T ES2387385T3 (en) 1999-10-22 2000-10-20 Ultra-low frequency transducer and speaker comprising the same
EP00984582A EP1222839B1 (en) 1999-10-22 2000-10-20 Ultra low frequency transducer and loud speaker comprising same
AU2004205159A AU2004205159B2 (en) 1999-10-22 2004-08-20 Ultra Low Frequency Transducer and Loudspeaker Comprising Same

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US16095999P 1999-10-22 1999-10-22
US60/160,959 1999-10-22
US09/610,600 US6611604B1 (en) 1999-10-22 2000-07-05 Ultra low frequency transducer and loud speaker comprising same
US09/610,600 2000-07-05

Publications (2)

Publication Number Publication Date
WO2001031975A2 WO2001031975A2 (en) 2001-05-03
WO2001031975A3 true WO2001031975A3 (en) 2002-05-02

Family

ID=26857381

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/041347 WO2001031975A2 (en) 1999-10-22 2000-10-20 Ultra low frequency transducer and loud speaker comprising same

Country Status (13)

Country Link
US (3) US6611604B1 (en)
EP (1) EP1222839B1 (en)
JP (1) JP2003515266A (en)
KR (1) KR100554818B1 (en)
CN (1) CN1320350A (en)
AU (1) AU773216B2 (en)
BR (1) BR0014849A (en)
CA (1) CA2387939C (en)
ES (1) ES2387385T3 (en)
MX (1) MXPA02003983A (en)
MY (1) MY125083A (en)
TW (1) TW498700B (en)
WO (1) WO2001031975A2 (en)

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US8023688B2 (en) 2011-09-20
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US6611604B1 (en) 2003-08-26
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AU773216B2 (en) 2004-05-20
CA2387939A1 (en) 2001-05-03

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