WO2026042467A1 - Dispositif acoustique - Google Patents

Dispositif acoustique

Info

Publication number
WO2026042467A1
WO2026042467A1 PCT/JP2025/025748 JP2025025748W WO2026042467A1 WO 2026042467 A1 WO2026042467 A1 WO 2026042467A1 JP 2025025748 W JP2025025748 W JP 2025025748W WO 2026042467 A1 WO2026042467 A1 WO 2026042467A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnet
pole piece
top plate
resistivity
bottom 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
PCT/JP2025/025748
Other languages
English (en)
Japanese (ja)
Inventor
隆洋 寺田
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.)
Yamaha Corp
Original Assignee
Yamaha 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 Yamaha Corp filed Critical Yamaha Corp
Publication of WO2026042467A1 publication Critical patent/WO2026042467A1/fr
Pending 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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details

Landscapes

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

Abstract

Un dispositif acoustique selon un aspect de la présente divulgation comprend : un aimant annulaire 10 ; une culasse inférieure 20 ayant une surface de montage 21 sur laquelle l'aimant 10 est placé ; une pièce pôle 30 disposée sur la surface de montage 21 à l'intérieur d'une surface périphérique intérieure de l'aimant 10 ; et une plaque supérieure 40 disposée sur une surface de l'aimant 10 qui fait face à une surface sur laquelle l'aimant 10 est placé sur la culasse inférieure 20. La plaque supérieure 40 a une résistivité inférieure à la résistivité de la pièce pôle 30.
PCT/JP2025/025748 2024-08-19 2025-07-18 Dispositif acoustique Pending WO2026042467A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2024137882A JP2026035080A (ja) 2024-08-19 2024-08-19 音響機器
JP2024-137882 2024-08-19

Publications (1)

Publication Number Publication Date
WO2026042467A1 true WO2026042467A1 (fr) 2026-02-26

Family

ID=98864957

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2025/025748 Pending WO2026042467A1 (fr) 2024-08-19 2025-07-18 Dispositif acoustique

Country Status (2)

Country Link
JP (1) JP2026035080A (fr)
WO (1) WO2026042467A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57111199U (fr) * 1980-12-26 1982-07-09
JPH0272797A (ja) * 1988-09-08 1990-03-13 Mitsubishi Electric Corp スピーカーの磁気回路
JPH10322786A (ja) * 1997-05-21 1998-12-04 Sony Corp スピーカ装置
JP2008187456A (ja) * 2007-01-30 2008-08-14 Sony Corp ドライバユニット、ヘッドフォン
JP2022138013A (ja) * 2021-03-09 2022-09-22 ヤマハ株式会社 音響変換器用磁気回路
WO2024075415A1 (fr) * 2022-10-03 2024-04-11 ヤマハ株式会社 Dispositif acoustique

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57111199U (fr) * 1980-12-26 1982-07-09
JPH0272797A (ja) * 1988-09-08 1990-03-13 Mitsubishi Electric Corp スピーカーの磁気回路
JPH10322786A (ja) * 1997-05-21 1998-12-04 Sony Corp スピーカ装置
JP2008187456A (ja) * 2007-01-30 2008-08-14 Sony Corp ドライバユニット、ヘッドフォン
JP2022138013A (ja) * 2021-03-09 2022-09-22 ヤマハ株式会社 音響変換器用磁気回路
WO2024075415A1 (fr) * 2022-10-03 2024-04-11 ヤマハ株式会社 Dispositif acoustique

Also Published As

Publication number Publication date
JP2026035080A (ja) 2026-03-04

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