JPH02143899U - - Google Patents
Info
- Publication number
- JPH02143899U JPH02143899U JP5025489U JP5025489U JPH02143899U JP H02143899 U JPH02143899 U JP H02143899U JP 5025489 U JP5025489 U JP 5025489U JP 5025489 U JP5025489 U JP 5025489U JP H02143899 U JPH02143899 U JP H02143899U
- Authority
- JP
- Japan
- Prior art keywords
- yoke
- recess
- acoustic transducer
- case
- electromagnetic acoustic
- 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
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 2
Landscapes
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Description
第１図は本考案に係る電磁音響変換器の実施例
を示す正断面図、第２図は実施例の主要部の分解
図、第３図はヨークの底面図、第４図はヨークに
固着した後の絶縁基板の底面図、第５図は本考案
の他の実施例を示す正断面図、第６図は同底面図
、第７図は従来例の正断面図、第８図は同底面図
である。
１，２０…ケース、２，２０…放音孔、３…駆
動コイル、４…ヨーク、５…リング状永久磁石、
６…振動板、８，２３…絶縁基板、１１…巻線端
、１２，３３…樹脂、１３，２５，２７…Ｕ字状
切欠、２０Ａ…本体ケース部、２０Ｂ…裏蓋ケー
ス部、２２…端子ピン、３０…凹部、４０…面装
着用端子、４１…接続用線材。
Fig. 1 is a front cross-sectional view showing an embodiment of the electromagnetic acoustic transducer according to the present invention, Fig. 2 is an exploded view of the main parts of the embodiment, Fig. 3 is a bottom view of the yoke, and Fig. 4 is fixed to the yoke. 5 is a front sectional view showing another embodiment of the present invention, FIG. 6 is a bottom view of the same, FIG. 7 is a front sectional view of the conventional example, and FIG. It is a bottom view. 1, 20... Case, 2, 20... Sound emission hole, 3... Drive coil, 4... Yoke, 5... Ring-shaped permanent magnet,
6... Vibration plate, 8, 23... Insulating board, 11... Winding end, 12, 33... Resin, 13, 25, 27... U-shaped notch, 20A... Main body case portion, 20B... Back cover case portion, 22... Terminal pin, 30... recess, 40... terminal for surface mounting, 41... wire for connection.
Claims (1)
記ヨークに対向配置された振動板とをケースに設
けた電磁音響変換器において、放音孔を形成した
本体ケース部と、樹脂溜まりとなる凹部を形成し
た裏蓋ケース部とで前記ケースを構成し、前記駆
動コイルの巻線端に接続された接続用端子又は線
材を前記裏蓋ケース部の凹部にて貫通させて引き
出し、前記凹部に樹脂を設けて封止したことを特
徴とする電磁音響変換器。 In an electromagnetic acoustic transducer in which a case is provided with a yoke provided with a driving coil, a permanent magnet, and a diaphragm disposed opposite to the yoke, the main case part has a sound emission hole formed therein, and a recessed part serving as a resin reservoir. A connecting terminal or a wire connected to the winding end of the drive coil is passed through a recess in the back cover case and is pulled out, and a resin is poured into the recess. An electromagnetic acoustic transducer characterized by being provided and sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5025489U JPH02143899U (en) | 1989-05-01 | 1989-05-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5025489U JPH02143899U (en) | 1989-05-01 | 1989-05-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02143899U true JPH02143899U (en) | 1990-12-06 |
Family
ID=31568644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5025489U Pending JPH02143899U (en) | 1989-05-01 | 1989-05-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02143899U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08102996A (en) * | 1994-10-03 | 1996-04-16 | Star Micronics Co Ltd | Small sounder |
-
1989
- 1989-05-01 JP JP5025489U patent/JPH02143899U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08102996A (en) * | 1994-10-03 | 1996-04-16 | Star Micronics Co Ltd | Small sounder |
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