GB201111026D0 - Box magnetic structure - Google Patents

Box magnetic structure

Info

Publication number
GB201111026D0
GB201111026D0 GB201111026A GB201111026A GB201111026D0 GB 201111026 D0 GB201111026 D0 GB 201111026D0 GB 201111026 A GB201111026 A GB 201111026A GB 201111026 A GB201111026 A GB 201111026A GB 201111026 D0 GB201111026 D0 GB 201111026D0
Authority
GB
United Kingdom
Prior art keywords
magnetic structure
box magnetic
box
magnetic
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.)
Withdrawn
Application number
GB201111026A
Other versions
GB2492360A (en
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.)
GP Acoustics International Ltd
Original Assignee
GP Acoustics International 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 GP Acoustics International Ltd filed Critical GP Acoustics International Ltd
Priority to GB201111026A priority Critical patent/GB2492360A/en
Publication of GB201111026D0 publication Critical patent/GB201111026D0/en
Publication of GB2492360A publication Critical patent/GB2492360A/en
Withdrawn legal-status Critical Current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
    • H04R9/025—Magnetic circuit
    • 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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/13—Use or details of compression drivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R27/00—Public address systems

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
GB201111026A 2011-06-29 2011-06-29 Permanent rare-earth magnet assembly for a loudspeaker Withdrawn GB2492360A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB201111026A GB2492360A (en) 2011-06-29 2011-06-29 Permanent rare-earth magnet assembly for a loudspeaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB201111026A GB2492360A (en) 2011-06-29 2011-06-29 Permanent rare-earth magnet assembly for a loudspeaker

Publications (2)

Publication Number Publication Date
GB201111026D0 true GB201111026D0 (en) 2011-08-10
GB2492360A GB2492360A (en) 2013-01-02

Family

ID=44485341

Family Applications (1)

Application Number Title Priority Date Filing Date
GB201111026A Withdrawn GB2492360A (en) 2011-06-29 2011-06-29 Permanent rare-earth magnet assembly for a loudspeaker

Country Status (1)

Country Link
GB (1) GB2492360A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN208754541U (en) * 2018-08-14 2019-04-16 惠州迪芬尼声学科技股份有限公司 A kind of array type magnetic path system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3478289A (en) * 1968-02-12 1969-11-11 Robert A Parnell Permanent magnet assembly for a loudspeaker assembly
US5661446A (en) * 1995-06-07 1997-08-26 Mts Systems Corporation Electromagnetic actuator
US5786741A (en) * 1995-12-21 1998-07-28 Aura Systems, Inc. Polygon magnet structure for voice coil actuator
NO975614A (en) * 1997-12-04 1999-04-26 Seas Fabrikker As Permanent magnet assembly
US7757376B2 (en) * 2006-09-12 2010-07-20 Tdk Corporation Method for manufacturing of a magnetic circuit
CN101363698B (en) * 2007-08-08 2012-10-03 杨伦华 Infrasonic wave generator

Also Published As

Publication number Publication date
GB2492360A (en) 2013-01-02

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)