JPH02141200U - - Google Patents
Info
- Publication number
- JPH02141200U JPH02141200U JP5012789U JP5012789U JPH02141200U JP H02141200 U JPH02141200 U JP H02141200U JP 5012789 U JP5012789 U JP 5012789U JP 5012789 U JP5012789 U JP 5012789U JP H02141200 U JPH02141200 U JP H02141200U
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical
- magnetic yoke
- permanent magnet
- frame
- front surface
- 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
- 239000002184 metal Substances 0.000 claims 3
- 239000004744 fabric Substances 0.000 claims 1
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Description
第１図はこの考案の実施例を示す断面図、第２
図は第１図の分解断面図、第３図は背面キヤツプ
２３の平面図、第４図は従来の電気音響変換器を
示す断面図である。
Figure 1 is a sectional view showing an embodiment of this invention, Figure 2 is a sectional view showing an embodiment of this invention.
The figures are an exploded sectional view of FIG. 1, FIG. 3 is a plan view of the rear cap 23, and FIG. 4 is a sectional view showing a conventional electroacoustic transducer.
Claims (1)
め込まれ、その永久磁石の背面に磁気ヨークの板
状部が対接され、その磁気ヨークの筒状部が上記
永久磁石内に挿通され、上記永久磁石の前面に金
属フレームが対接されてその金属フレームと上記
磁気ヨークの筒状部との間に環状磁気空隙が形成
され、その環状磁気空隙にボイスコイルが配され
、そのボイスコイルを保持した振動板の外周が上
記筒状フレームの前面に取付けられ、その筒状フ
レームの前面が前面キヤツプで蓋され、その筒状
フレームの背面が背面キヤツプで蓋された電気音
響変換器において、 上記背面キヤツプの内面にリブが形成され、 そのリブにより、上記磁気ヨークの中心孔を塞
ぐ補償布が磁気ヨークの背面に押え保持されてい
ることを特徴とする電気音響変換器。[Claims for Utility Model Registration] A cylindrical permanent magnet is coaxially fitted into a cylindrical frame, a plate-shaped portion of a magnetic yoke is opposed to the back surface of the permanent magnet, and the cylindrical portion of the magnetic yoke is A metal frame is inserted into the permanent magnet, and a metal frame is brought into contact with the front surface of the permanent magnet, and an annular magnetic gap is formed between the metal frame and the cylindrical part of the magnetic yoke, and a voice coil is formed in the annular magnetic gap. is arranged, the outer periphery of the diaphragm holding the voice coil is attached to the front surface of the cylindrical frame, the front surface of the cylindrical frame is covered with a front cap, and the back surface of the cylindrical frame is covered with a rear cap. In the electroacoustic transducer according to the present invention, a rib is formed on the inner surface of the rear cap, and a compensating cloth that closes the center hole of the magnetic yoke is held and held by the rib on the rear surface of the magnetic yoke. converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5012789U JPH02141200U (en) | 1989-04-26 | 1989-04-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5012789U JPH02141200U (en) | 1989-04-26 | 1989-04-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02141200U true JPH02141200U (en) | 1990-11-27 |
Family
ID=31568409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5012789U Pending JPH02141200U (en) | 1989-04-26 | 1989-04-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02141200U (en) |
-
1989
- 1989-04-26 JP JP5012789U patent/JPH02141200U/ja active Pending