Title:
ELECTROACOUSTIC TRANSDUCER AND ITS MANUFACTURE
Document Type and Number:
Japanese Patent JP2615358
Kind Code:
B2
Abstract:
PURPOSE: To make the size of the transducer small and to simplify the assembling structure by reducing the number of components.
CONSTITUTION: The electroacoustic transducer is provided with a metal base plate 2 being a base member made of a magnetic material, an iron core 22 formed by cutting and raising part of the base member 2 upright, a coil 4 wound on the iron core 22, a magnet 6 surrounding the coil 4 and placed on the base member 2, a diaphragm 10 receiving a magnetic field from the magnet 6 and placed with a gap with respect to an end face of the iron core 22, and leads 28, 30 formed to the base member 2 with an insulation layer 26 inbetween and to which ends of the coil 4 are connected.
Inventors:
Takane Sone
Application Number:
JP34404893A
Publication Date:
May 28, 1997
Filing Date:
December 17, 1993
Export Citation:
Assignee:
Star Micronics Co., Ltd.
International Classes:
H04R13/00; H04R31/00; (IPC1-7): H04R13/00; H04R31/00
Domestic Patent References:
| JP61185099U | ||||
| JP5772498U | ||||
| JP5613300U |
Attorney, Agent or Firm:
Shoichi Unemoto
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