Title:
電気機械変換器及び電気音響変換器
Document Type and Number:
Japanese Patent JP6994429
Kind Code:
B2
Abstract:
The electromechanical transducer is provided with: a structure portion in which a magnet, yokes, and a coil are integrally arranged; an armature which includes an inner portion penetrating through an internal space of the structure portion along a central axis in the X-direction, and outer portions, constitutes a magnetic circuit with the structure portion, and is displaced in the Z-direction; and elastic members providing the armature with a recovery force. Each of the elastic members has a first and a second engaging portions. A width in which a force in the Z-direction acts between each of the elastic members and the structure portion via the first engaging portion has a first distance. A width between each of the elastic members and the outer portion via the second engaging portion has a second distance in the Y-direction, wherein the dimension condition of 2a>2×2b is set.
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Inventors:
Yukishi Iwakura
Application Number:
JP2018087211A
Publication Date:
January 14, 2022
Filing Date:
April 27, 2018
Export Citation:
Assignee:
Rion Co., Ltd.
International Classes:
H04R11/02
Domestic Patent References:
| JP5653543B1 | ||||
| JP2017152903A | ||||
| JP2007074499A |
Foreign References:
| US6075870 |
Attorney, Agent or Firm:
Kohei Suto