JPH01107299U - - Google Patents
Info
- Publication number
- JPH01107299U JPH01107299U JP144888U JP144888U JPH01107299U JP H01107299 U JPH01107299 U JP H01107299U JP 144888 U JP144888 U JP 144888U JP 144888 U JP144888 U JP 144888U JP H01107299 U JPH01107299 U JP H01107299U
- Authority
- JP
- Japan
- Prior art keywords
- frame
- yoke
- plate
- pole part
- diaphragm
- 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
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Description
第１図は本考案実施例の断面図、第２図は同、
一部切欠斜視図、第３図は実施例の変形例の断面
図、第４図は従来例の断面図である。
１はフレーム、２はヨーク、３は音声コイル、
４は振動板、５は漏孔、６はスリツトである。
Figure 1 is a sectional view of the embodiment of the present invention, Figure 2 is the same,
A partially cutaway perspective view, FIG. 3 is a sectional view of a modification of the embodiment, and FIG. 4 is a sectional view of a conventional example. 1 is the frame, 2 is the yoke, 3 is the voice coil,
4 is a diaphragm, 5 is a leakage hole, and 6 is a slit.
Claims (1)
チツクマグネツトからなるフレーム１と、該フレ
ーム１の底面に固定され且つ板状部２ａとポール
部２ｂからなるヨーク２と、該ポール部２ｂに巻
回されている音声コイル３と、前記ポール部２ｂ
と対向する部位若しくは全体が磁性体板からなり
且つ該ポール部２ｂと僅かな間隙を隔ててフレー
ム１に保持されている振動板４とからなり、前記
ヨーク２のフレーム１底面との対向部に複数個の
漏孔５が穿設されると共に、フレーム１底面とヨ
ーク２の板状部２ｂとの間に当該漏孔５と振動板
４の背面空間Ｃ１とを連通するスリツト６が形成
されていることを特徴とする電気音響変換器。 A frame 1 made of a ring-shaped plastic magnet magnetized in the direction of the main axis of the converter, a yoke 2 fixed to the bottom surface of the frame 1 and consisting of a plate part 2a and a pole part 2b, and a yoke 2 wound around the pole part 2b. The voice coil 3 being turned and the pole part 2b
The diaphragm 4 is made of a magnetic plate and is held on the frame 1 with a slight gap from the pole portion 2b, and the portion of the yoke 2 that faces the bottom surface of the frame 1 is made of a magnetic plate. A plurality of leak holes 5 are bored, and a slit 6 is formed between the bottom surface of the frame 1 and the plate-shaped portion 2b of the yoke 2, which communicates the leak holes 5 with the back space C1 of the diaphragm 4. An electroacoustic transducer characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP144888U JPH01107299U (en) | 1988-01-08 | 1988-01-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP144888U JPH01107299U (en) | 1988-01-08 | 1988-01-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01107299U true JPH01107299U (en) | 1989-07-19 |
Family
ID=31201342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP144888U Pending JPH01107299U (en) | 1988-01-08 | 1988-01-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01107299U (en) |
-
1988
- 1988-01-08 JP JP144888U patent/JPH01107299U/ja active Pending
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