EP1755357A3 - Coaxial two-way drive unit for horn speakers - Google Patents

Coaxial two-way drive unit for horn speakers Download PDF

Info

Publication number
EP1755357A3
EP1755357A3 EP06117048A EP06117048A EP1755357A3 EP 1755357 A3 EP1755357 A3 EP 1755357A3 EP 06117048 A EP06117048 A EP 06117048A EP 06117048 A EP06117048 A EP 06117048A EP 1755357 A3 EP1755357 A3 EP 1755357A3
Authority
EP
European Patent Office
Prior art keywords
drive unit
voice coil
shaped
coaxial
cone
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.)
Granted
Application number
EP06117048A
Other languages
German (de)
French (fr)
Other versions
EP1755357B1 (en
EP1755357A2 (en
Inventor
Alessandro Genovese
Roberto Coppini
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.)
B&C Speakers SpA
Original Assignee
B&C Speakers SpA
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 B&C Speakers SpA filed Critical B&C Speakers SpA
Publication of EP1755357A2 publication Critical patent/EP1755357A2/en
Publication of EP1755357A3 publication Critical patent/EP1755357A3/en
Application granted granted Critical
Publication of EP1755357B1 publication Critical patent/EP1755357B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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 
    • H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns
    • 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 
    • H04R1/24—Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges
    • 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
    • H04R9/063—Loudspeakers using a plurality of acoustic drivers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (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)

Abstract

A coaxial two-way drive unit (1) for horn-loading speakers, comprising a first voice coil drive unit (6, 8) associated with a second voice coil drive unit (18, 19). The first unit is frustum of cone shaped, while the second unit is shaped like an annular diaphragm (19) with the voice coil (18) arranged on a circle placed between the inner and outer circular perimeter of said annular diaphragm (19). The first drive unit (6) is associated with a truncated segmented substantially conical element (3), with a first end facing towards the cone and a second tapered end facing towards the mouth of the drive unit, the second drive unit being associated with an ogive-shaped element (20, 31) cooperating with said substantially conical element and facing towards the mouth of the drive unit. The first and second drive units (6, 19) are associated with a respective magnetic structure with high-energy permanent magnets that define a first and a second air gap cooperating with the voice coil (8) of the cone-shaped element (6) and with the voice coil (18) of the annular diaphragm-shaped element (19).
EP06117048A 2005-07-15 2006-07-12 Coaxial two-way drive unit for horn speakers Not-in-force EP1755357B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITAO20050155 2005-07-15

Publications (3)

Publication Number Publication Date
EP1755357A2 EP1755357A2 (en) 2007-02-21
EP1755357A3 true EP1755357A3 (en) 2007-03-21
EP1755357B1 EP1755357B1 (en) 2008-09-24

Family

ID=37606962

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06117048A Not-in-force EP1755357B1 (en) 2005-07-15 2006-07-12 Coaxial two-way drive unit for horn speakers

Country Status (3)

Country Link
EP (1) EP1755357B1 (en)
AT (1) ATE409396T1 (en)
DE (1) DE602006002852D1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2458275A (en) * 2008-03-10 2009-09-16 Turbosound Ltd Horn loading arrangement for a co-axial two-way loudspeaker
FR2955445B1 (en) 2010-01-15 2013-06-07 Phl Audio ELECTRODYNAMIC TRANSDUCER WITH DOME AND INTERNAL SUSPENSION
FR2955444B1 (en) 2010-01-15 2012-08-03 Phl Audio COAXIAL SPEAKER SYSTEM WITH COMPRESSION CHAMBER
FR2955446B1 (en) 2010-01-15 2015-06-05 Phl Audio ELECTRODYNAMIC TRANSDUCER WITH DOME AND FLOATING SUSPENSION
GB2502189B (en) 2013-03-25 2014-06-04 Tannoy Ltd Loudspeaker

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB545712A (en) * 1941-01-02 1942-06-09 Albert Charles Woods Improvements in and relating to loud speakers
US3665124A (en) * 1968-12-30 1972-05-23 Nippon Musical Instruments Mfg Loudspeaker having annular diaphragm with double voice coil
WO1995028065A1 (en) * 1994-04-09 1995-10-19 Harman International Industries Limited A modular tweeter
JPH1198591A (en) * 1997-09-19 1999-04-09 Toa Corp Coaxial speaker

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB545712A (en) * 1941-01-02 1942-06-09 Albert Charles Woods Improvements in and relating to loud speakers
US3665124A (en) * 1968-12-30 1972-05-23 Nippon Musical Instruments Mfg Loudspeaker having annular diaphragm with double voice coil
WO1995028065A1 (en) * 1994-04-09 1995-10-19 Harman International Industries Limited A modular tweeter
JPH1198591A (en) * 1997-09-19 1999-04-09 Toa Corp Coaxial speaker

Also Published As

Publication number Publication date
EP1755357B1 (en) 2008-09-24
DE602006002852D1 (en) 2008-11-06
EP1755357A2 (en) 2007-02-21
ATE409396T1 (en) 2008-10-15

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