Title:
電気音響変換器
Document Type and Number:
Japanese Patent JP4997173
Kind Code:
B2
Abstract:
According to the invention, in an electroacoustic transducing device comprising: a magnetic circuit 13 having a yoke 4, a magnet 11, and a pole piece 12; a vibration system 16 having a diaphragm 14 and a voice coil 15; and a frame 1 which holds the magnetic circuit 13 and the vibration system 16, the voice coil 15 being placed in a magnetic gap 30, lead wires 17, 18 of the voice coil 15 are drawn out from the voice coil 15 at positions which are remote from the diaphragm 14, and openings 7A, 7B for air forming for forming slack portions 31, 32 in the lead wires 17, 18 drawn out from the voice coil 15 are disposed in the frame 1. The lead wires 17, 18 are adequately subjected to the wire laying process, and the audio performance is prevented from being lowered.
Inventors:
Yuasa Yuasa
Hidenori Motonaga
Katsuya Fujita
Wang Wei
Hidenori Motonaga
Katsuya Fujita
Wang Wei
Application Number:
JP2008125472A
Publication Date:
August 08, 2012
Filing Date:
May 13, 2008
Export Citation:
Assignee:
Hosiden Co., Ltd.
International Classes:
H04R9/04; H04R9/02; H04R31/00
Domestic Patent References:
| JP3098127B2 | ||||
| JP2007235427A | ||||
| JP61167300A | ||||
| JP2004128822A |
Foreign References:
| WO2008018007A1 |
Attorney, Agent or Firm:
Shoji Suzue