Title:
イヤホンドライバ及び製造方法
Document Type and Number:
Japanese Patent JP2013534116
Kind Code:
A
Abstract:
A balanced armature motor assembly has a circuit board mounted to a bobbin. A first end of a wire coil is secured to a first terminal on the circuit board and passes through a first cutout of the bobbin. A second end of the wire coil is secured to a second terminal on the circuit board and passes through a second cutout of the bobbin. The first end of the wire coil is oriented along a first line tangent to a center post of the bobbin, and the second end of the wire coil is oriented along a second line tangent to the center post of the bobbin. In another embodiment, a compressed polymer material is interposed between a first magnet and a post located on the bobbin and between a second magnet and the post on the bobbin. The polymer material forces the first and second magnets into contact with the pole piece such that the magnets can be welded to the pole piece.
Inventors:
Glinker, Scott Charles
Donald David
Stoff, Matthew Lewis
Donald David
Stoff, Matthew Lewis
Application Number:
JP2013518705A
Publication Date:
August 29, 2013
Filing Date:
June 30, 2011
Export Citation:
Assignee:
SHURE ACQUISITION HOLDINGS,INC.
International Classes:
H04R11/02; H04R1/10; H04R25/00
Domestic Patent References:
| JP2001268692A | 2001-09-28 | |||
| JP2008193449A | 2008-08-21 |
Foreign References:
| WO2001069963A2 | 2001-09-20 |
Attorney, Agent or Firm:
Hidekazu Miyoshi
Masakazu Ito
Yuko Hara
Masakazu Ito
Yuko Hara