JPH02104000U - - Google Patents
Info
- Publication number
- JPH02104000U JPH02104000U JP1081889U JP1081889U JPH02104000U JP H02104000 U JPH02104000 U JP H02104000U JP 1081889 U JP1081889 U JP 1081889U JP 1081889 U JP1081889 U JP 1081889U JP H02104000 U JPH02104000 U JP H02104000U
- Authority
- JP
- Japan
- Prior art keywords
- terfenol
- diaphragm
- voice coil
- electroacoustic transducer
- attached
- 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
Links
- 229910001329 Terfenol-D Inorganic materials 0.000 claims description 5
- 230000005291 magnetic effect Effects 0.000 claims description 4
- 239000003302 ferromagnetic material Substances 0.000 claims 1
Landscapes
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Description
第１図及び第２図はこの考案に係る電気音響変
換器の実施例を示し、第１図は断面図、第２図は
この考案の他の実施例を示す断面図である。第３
図は従来の電気音響変換器の実施例を示す断面図
である。
主な符号の説明、１：ボイスコイル、２：磁芯
、３：テルフエノール、４：振動板、５：フレー
ム、６：エツジ。
1 and 2 show an embodiment of an electroacoustic transducer according to this invention, FIG. 1 is a sectional view, and FIG. 2 is a sectional view showing another embodiment of this invention. Third
The figure is a sectional view showing an example of a conventional electroacoustic transducer. Explanation of the main symbols: 1: Voice coil, 2: Magnetic core, 3: Terfenol, 4: Vibration plate, 5: Frame, 6: Edge.
Claims (1)
変換する電気音響変換器において、 ボイスコイル内部に強磁性体の磁心を設け、こ
の磁心に磁場の強弱によつて伸び縮みするテルフ
エノールを取り付け、このテルフエノールに振動
板を取り付けたことを特徴とする電気音響変換器
。 ２ ボイスコイル電流の変化を振動板の動きに変
換する電気音響変換器において、 ボイスコイル内部に磁場の強弱によつて伸び縮
みするテルフエノールを設け、このテルフエノー
ルに振動板を取り付けたことを特徴とする電気音
響変換器。[Claims for Utility Model Registration] 1. In an electroacoustic transducer that converts changes in the current of a voice coil into movements of a diaphragm, a magnetic core of a ferromagnetic material is provided inside the voice coil, and the magnetic core An electroacoustic transducer characterized by having expandable and contractible terfenol attached and a diaphragm attached to the terfenol. 2. An electroacoustic transducer that converts changes in voice coil current into movement of a diaphragm.The feature is that a terfenol that expands and contracts depending on the strength of the magnetic field is provided inside the voice coil, and a diaphragm is attached to this terfenol. electroacoustic transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1081889U JPH02104000U (en) | 1989-02-02 | 1989-02-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1081889U JPH02104000U (en) | 1989-02-02 | 1989-02-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02104000U true JPH02104000U (en) | 1990-08-17 |
Family
ID=31218813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1081889U Pending JPH02104000U (en) | 1989-02-02 | 1989-02-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02104000U (en) |
-
1989
- 1989-02-02 JP JP1081889U patent/JPH02104000U/ja active Pending
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