EP2696598A3 - Magnetic assembly for a loudspeaker - Google Patents

Magnetic assembly for a loudspeaker Download PDF

Info

Publication number
EP2696598A3
EP2696598A3 EP13178920.8A EP13178920A EP2696598A3 EP 2696598 A3 EP2696598 A3 EP 2696598A3 EP 13178920 A EP13178920 A EP 13178920A EP 2696598 A3 EP2696598 A3 EP 2696598A3
Authority
EP
European Patent Office
Prior art keywords
magnetic assembly
loudspeaker
permanent magnets
correspondence
air gap
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
EP13178920.8A
Other languages
German (de)
French (fr)
Other versions
EP2696598A2 (en
EP2696598B1 (en
Inventor
Dario Cinanni
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.)
Ciare Srl
Original Assignee
Ciare Srl
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 Ciare Srl filed Critical Ciare Srl
Publication of EP2696598A2 publication Critical patent/EP2696598A2/en
Publication of EP2696598A3 publication Critical patent/EP2696598A3/en
Application granted granted Critical
Publication of EP2696598B1 publication Critical patent/EP2696598B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0273—Magnetic circuits with PM for magnetic field generation
    • H01F7/0289—Transducers, loudspeakers, moving coil arrangements
    • 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
    • H04R9/025—Magnetic circuit

Landscapes

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

Abstract

A magnetic assembly (100) for a loudspeaker comprising permanent magnets (3) arranged in a ring in central symmetry between two polar plates (1, 2) coupled so as to form a magnetic circuit air gap (4), which polar plates (1, 2) comprise external rings (10, 22) provided with petals (12, 21) in correspondence with the permanent magnets (3). Said magnetic assembly (100) provides ribs (26) on a basis (20) of a first polar plate (2), adapted to at least partially occupy a cavity of the air gap (4) in correspondence with interstices between the adjacent permanent magnets (3). (Figure 1)
EP13178920.8A 2012-08-08 2013-08-01 Magnetic assembly for a loudspeaker Not-in-force EP2696598B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT001411A ITMI20121411A1 (en) 2012-08-08 2012-08-08 MAGNETIC ASSEMBLED FOR SPEAKER.

Publications (3)

Publication Number Publication Date
EP2696598A2 EP2696598A2 (en) 2014-02-12
EP2696598A3 true EP2696598A3 (en) 2014-03-12
EP2696598B1 EP2696598B1 (en) 2015-07-15

Family

ID=47046673

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13178920.8A Not-in-force EP2696598B1 (en) 2012-08-08 2013-08-01 Magnetic assembly for a loudspeaker

Country Status (2)

Country Link
EP (1) EP2696598B1 (en)
IT (1) ITMI20121411A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202200002666A1 (en) 2022-02-14 2023-08-14 Luca Corso NEW SOUND SPEAKER CHARACTERIZED BY AN ADAPTABLE CONFIGURATION THAT CAN BE UPDATED OVER TIME BY A USER

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0921707A2 (en) * 1997-12-04 1999-06-09 Seas Fabrikker AS Permanent magnet assembly
EP1381253A1 (en) * 2002-07-09 2004-01-14 FOCAL JMLab Magnetic system for a moving coil loudspeaker
EP1381252A1 (en) * 2002-07-09 2004-01-14 FOCAL JMLab Multi-ferrite magnetic system for loudspeaker

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0921707A2 (en) * 1997-12-04 1999-06-09 Seas Fabrikker AS Permanent magnet assembly
EP1381253A1 (en) * 2002-07-09 2004-01-14 FOCAL JMLab Magnetic system for a moving coil loudspeaker
EP1381252A1 (en) * 2002-07-09 2004-01-14 FOCAL JMLab Multi-ferrite magnetic system for loudspeaker

Also Published As

Publication number Publication date
EP2696598A2 (en) 2014-02-12
EP2696598B1 (en) 2015-07-15
ITMI20121411A1 (en) 2014-02-09

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