JPS56128099A - Magnetic circuit for speaker - Google Patents

Magnetic circuit for speaker

Info

Publication number
JPS56128099A
JPS56128099A JP3127480A JP3127480A JPS56128099A JP S56128099 A JPS56128099 A JP S56128099A JP 3127480 A JP3127480 A JP 3127480A JP 3127480 A JP3127480 A JP 3127480A JP S56128099 A JPS56128099 A JP S56128099A
Authority
JP
Japan
Prior art keywords
magnetic
sintered
characteristic
low
substance powder
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
JP3127480A
Other languages
Japanese (ja)
Inventor
Takashi Ooyaba
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic Corp
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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP3127480A priority Critical patent/JPS56128099A/en
Publication of JPS56128099A publication Critical patent/JPS56128099A/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
    • H04R9/025—Magnetic circuit

Landscapes

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

Abstract

PURPOSE:To reduce a harmonic distortion by using a member which has sintered magnetic substance powder, for a part or all of the magnetic circuit component member being adjacent to a magnetic gap, and making a part of the magnetic pole different from other part in its magnetic quality. CONSTITUTION:A flange part 1a of the T-type center pole 1 is sintered and formed by use of a magnetic substance (m). Also, all of the top plate 2 for forming a magnetic gap by one pair with the flange part 1a of the T-type pole piece 1 is sintered and formed by use of magnetic substance powder (m). The magnetic substance powder (m) in this case has a high saturation magnetic flux density characteristic, a high magnetic permeability charactersitic, and a low hysteresis characteristic. The residual pole piece 1 and the back plate 3 are formed by materials having a low saturation magnetic flux density characteritic, a low magnetic permeability characteristic, and a high hysteresis characteristic.
JP3127480A 1980-03-12 1980-03-12 Magnetic circuit for speaker Pending JPS56128099A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3127480A JPS56128099A (en) 1980-03-12 1980-03-12 Magnetic circuit for speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3127480A JPS56128099A (en) 1980-03-12 1980-03-12 Magnetic circuit for speaker

Publications (1)

Publication Number Publication Date
JPS56128099A true JPS56128099A (en) 1981-10-07

Family

ID=12326744

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3127480A Pending JPS56128099A (en) 1980-03-12 1980-03-12 Magnetic circuit for speaker

Country Status (1)

Country Link
JP (1) JPS56128099A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5321762A (en) * 1991-08-05 1994-06-14 Aura Systems, Inc. Voice coil actuator
EP1763282A2 (en) 2005-09-07 2007-03-14 Pioneer Corporation Magnetic circuit for speaker device and speaker device
WO2012149938A1 (en) 2011-05-04 2012-11-08 Dali A/S Electromagnetic drive unit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5321762A (en) * 1991-08-05 1994-06-14 Aura Systems, Inc. Voice coil actuator
EP1763282A2 (en) 2005-09-07 2007-03-14 Pioneer Corporation Magnetic circuit for speaker device and speaker device
US7903837B2 (en) 2005-09-07 2011-03-08 Pioneer Corporation Magnetic circuit for speaker device and speaker device
WO2012149938A1 (en) 2011-05-04 2012-11-08 Dali A/S Electromagnetic drive unit
US9036859B2 (en) 2011-05-04 2015-05-19 Dali A/S Electromagnetic drive unit

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