JPH02145896U - - Google Patents
Info
- Publication number
- JPH02145896U JPH02145896U JP4854590U JP4854590U JPH02145896U JP H02145896 U JPH02145896 U JP H02145896U JP 4854590 U JP4854590 U JP 4854590U JP 4854590 U JP4854590 U JP 4854590U JP H02145896 U JPH02145896 U JP H02145896U
- Authority
- JP
- Japan
- Prior art keywords
- pole piece
- drive coil
- diaphragm
- electromagnetic induction
- electromagnetic
- 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.)
- Granted
Links
- 230000005674 electromagnetic induction Effects 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Description
第１図は本考案に係る電磁誘導型スピーカの断
面図であり、第２図はその平面図である。第３図
は上記電磁誘導型スピーカの音圧周波数特性及び
インピーダンス特性を示す特性図であり、第４図
は上記スピーカの入力側の回路構成を示す回路図
である。第５図は本考案に係る電磁誘導型スピー
カのたの実施例を示す断面図である。第６図は従
来の電磁誘導型スピーカの断面図である。
１１……磁気回路部、１２……振動板、１３…
…第１の電磁誘導コイル、１４……第２の電磁誘
導コイル、１９……磁気ギヤツプ、２２，２３…
…切欠き段部。
FIG. 1 is a sectional view of an electromagnetic induction speaker according to the present invention, and FIG. 2 is a plan view thereof. FIG. 3 is a characteristic diagram showing the sound pressure frequency characteristics and impedance characteristics of the electromagnetic induction type speaker, and FIG. 4 is a circuit diagram showing the circuit configuration on the input side of the speaker. FIG. 5 is a sectional view showing another embodiment of the electromagnetic induction speaker according to the present invention. FIG. 6 is a sectional view of a conventional electromagnetic induction speaker. 11... Magnetic circuit section, 12... Vibration plate, 13...
...First electromagnetic induction coil, 14... Second electromagnetic induction coil, 19... Magnetic gap, 22, 23...
...Notch step.
Claims (1)
ネツトとを備えリング状の磁気ギヤツプ内に直流
磁界を発生させる磁気回路と、 導電材料によりリング状に形成されるとともに
上記磁気ギヤツプ内に振動自在に配置された振動
板と、 上記振動板に近接して配置された電磁駆動コイ
ルとを有し、 上記ポールピースの外周の上記駆動コイルと対
向する位置に凹状部を環状に設けてなる 電磁誘導型スピーカ。[Claims for Utility Model Registration] A magnetic circuit that generates a direct current magnetic field within a ring-shaped magnetic gap that includes a yoke, a pole piece, a top plate, and a magnet; a diaphragm arranged to vibrate freely; and an electromagnetic drive coil arranged close to the diaphragm, and a recessed part is provided in an annular shape on the outer periphery of the pole piece at a position facing the drive coil. An electromagnetic induction speaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990048545U JP2500908Y2 (en) | 1990-05-11 | 1990-05-11 | Electromagnetic induction type speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990048545U JP2500908Y2 (en) | 1990-05-11 | 1990-05-11 | Electromagnetic induction type speaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02145896U true JPH02145896U (en) | 1990-12-11 |
| JP2500908Y2 JP2500908Y2 (en) | 1996-06-12 |
Family
ID=31565448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990048545U Expired - Lifetime JP2500908Y2 (en) | 1990-05-11 | 1990-05-11 | Electromagnetic induction type speaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2500908Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5151928A (en) * | 1974-10-31 | 1976-05-07 | Sansui Electric Co | JUDOKYUDENGATASUPIIKA |
| JPS583696U (en) * | 1981-06-30 | 1983-01-11 | 松下電器産業株式会社 | Magnetic circuit for speakers |
-
1990
- 1990-05-11 JP JP1990048545U patent/JP2500908Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5151928A (en) * | 1974-10-31 | 1976-05-07 | Sansui Electric Co | JUDOKYUDENGATASUPIIKA |
| JPS583696U (en) * | 1981-06-30 | 1983-01-11 | 松下電器産業株式会社 | Magnetic circuit for speakers |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2500908Y2 (en) | 1996-06-12 |
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