JPS56158596A - Magnetic circuit for speaker - Google Patents

Magnetic circuit for speaker

Info

Publication number
JPS56158596A
JPS56158596A JP6295280A JP6295280A JPS56158596A JP S56158596 A JPS56158596 A JP S56158596A JP 6295280 A JP6295280 A JP 6295280A JP 6295280 A JP6295280 A JP 6295280A JP S56158596 A JPS56158596 A JP S56158596A
Authority
JP
Japan
Prior art keywords
magnetic circuit
speaker
voice coil
current flowing
yoke
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
JP6295280A
Other languages
Japanese (ja)
Inventor
Tatsuo Saito
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 JP6295280A priority Critical patent/JPS56158596A/en
Publication of JPS56158596A publication Critical patent/JPS56158596A/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; ELECTRIC HEARING AIDS; 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 the distortion due to a high frequency current flowing to a voice coil inserted in the magnetic gap and to make the assembly of a speaker easy, by constituting the magnetic circuit for speaker with sintered carbon steel. CONSTITUTION:At the external circumference on a lower end of a pole yoke 1, a back plate 2 is projected, a ring shape magnet 3 is fitted on the back plate 2, a top plate 4 is fixed on the upper surface of the magnet 3 and a magnetic circuit of a speaker is constituted. A voice coil is inserted between the inner circumference of the top plate 4 of the magnetic circuit and the upper end external circumference of the yoke 1. The yoke 1 of the magnetic circuit is formed with carbon steel, which is heated for a given time at a given temperature, and after heating, sintering treatment is made with sudden cooling. Further, a minor loop produced from a current flowing to the voice coil near the operating point A on a magnetization curve of the magnetic circuit is made smaller than the minor loop near the operating point B conventionally, allowing to reduce the distortion due to the high frequency current flowing to the voice coil.
JP6295280A 1980-05-13 1980-05-13 Magnetic circuit for speaker Pending JPS56158596A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6295280A JPS56158596A (en) 1980-05-13 1980-05-13 Magnetic circuit for speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6295280A JPS56158596A (en) 1980-05-13 1980-05-13 Magnetic circuit for speaker

Publications (1)

Publication Number Publication Date
JPS56158596A true JPS56158596A (en) 1981-12-07

Family

ID=13215159

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6295280A Pending JPS56158596A (en) 1980-05-13 1980-05-13 Magnetic circuit for speaker

Country Status (1)

Country Link
JP (1) JPS56158596A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5899994U (en) * 1981-12-25 1983-07-07 ヤマハ株式会社 Magnetic circuit in electroacoustic transducer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5899994U (en) * 1981-12-25 1983-07-07 ヤマハ株式会社 Magnetic circuit in electroacoustic transducer

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