JPH01108696U - - Google Patents
Info
- Publication number
- JPH01108696U JPH01108696U JP329688U JP329688U JPH01108696U JP H01108696 U JPH01108696 U JP H01108696U JP 329688 U JP329688 U JP 329688U JP 329688 U JP329688 U JP 329688U JP H01108696 U JPH01108696 U JP H01108696U
- Authority
- JP
- Japan
- Prior art keywords
- frame
- pole part
- plate
- holes
- 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
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図は同実
施例の一部切欠斜視図、第3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、7は貫通
孔である。
FIG. 1 is a sectional view of an embodiment of the present invention, FIG. 2 is a partially cutaway perspective view of the same embodiment, and FIG. 3 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, 6 is a slit, and 7 is a through hole.
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該フレーム1底面と
の対向部に複数個の漏孔5が穿設されている板状
部2aと該板状部2aの中心部に突設されたポー
ル部2bとからなるヨーク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、
前記フレーム1の振動板4の背部で且つ前記複数
個の漏孔5とは異なる位置に音響質量となる複数
個の貫通孔7が穿設されると共に、フレーム1の
底面と前記板状部2aとの間に漏孔5と貫通孔7
とを連通させるスリツト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, and a plurality of leak holes 5 fixed to the bottom surface of the frame 1 and bored in a portion facing the bottom surface of the frame 1. A yoke 2 consisting of a plate-like part 2a and a pole part 2b protruding from the center of the plate-like part 2a, and the pole part 2b.
a voice coil 3 wound around the pole part 2b, and a diaphragm 4 whose entire portion or part facing the pole part 2b is made of a magnetic plate and which is held on the frame 1 with a slight gap from the pole part 2b. Consisting of
A plurality of through holes 7 serving as acoustic masses are bored at the back of the diaphragm 4 of the frame 1 and at positions different from the plurality of leak holes 5, and the bottom surface of the frame 1 and the plate-shaped portion 2a leak hole 5 and through hole 7 between
An electroacoustic transducer characterized in that a slit 6 is formed to communicate with the electroacoustic transducer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP329688U JPH01108696U (en) | 1988-01-13 | 1988-01-13 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP329688U JPH01108696U (en) | 1988-01-13 | 1988-01-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01108696U true JPH01108696U (en) | 1989-07-24 |
Family
ID=31204806
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP329688U Pending JPH01108696U (en) | 1988-01-13 | 1988-01-13 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01108696U (en) |
-
1988
- 1988-01-13 JP JP329688U patent/JPH01108696U/ja active Pending
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