JPH0420800U - - Google Patents
Info
- Publication number
- JPH0420800U JPH0420800U JP6297190U JP6297190U JPH0420800U JP H0420800 U JPH0420800 U JP H0420800U JP 6297190 U JP6297190 U JP 6297190U JP 6297190 U JP6297190 U JP 6297190U JP H0420800 U JPH0420800 U JP H0420800U
- Authority
- JP
- Japan
- Prior art keywords
- shield cover
- magnetic circuit
- magnet
- speaker
- magnetically shielded
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 239000000696 magnetic material Substances 0.000 claims 1
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Description
第１図は本考案の全体の断面図、第２図は本考
案のシールドカバーの外観斜視図である。
図中、１は磁気回路、２はメインマグネツト、
２ａはキヤンセルマグネツト、３ａは上プレート
、３ｂは下プレート、３ｃはセンターポール、３
ｄは磁気空隙、８はシールドカバー、８ａはスリ
ツトである。
FIG. 1 is an overall sectional view of the present invention, and FIG. 2 is an external perspective view of the shield cover of the present invention. In the figure, 1 is the magnetic circuit, 2 is the main magnet,
2a is a cancel magnet, 3a is an upper plate, 3b is a lower plate, 3c is a center pole, 3
d is a magnetic gap, 8 is a shield cover, and 8a is a slit.
Claims (1)
ト３ａ，３ｂで挟んで保持した外磁型磁気回路１
に、内底部にキヤンセルマグネツト２ａを当接し
て接着した、椀形の鉄板等の磁気材料製のシール
ドカバー８を、前記磁気回路１の上から被せて、
キヤンセルマグネツト２ａを上プレート３ａに密
着して、下プレート３ｂの拡張した外周に、シー
ルドカバー８の外縁部を嵌め込んで固定して磁気
遮蔽したスピーカにおいて、シールドカバー８の
外周側壁に半径方向の弾力付勢用のスリツト８ａ
を設けた磁気遮蔽スピーカ。 An external magnet type magnetic circuit 1 in which a ring-shaped main magnet 2 is held between upper and lower plates 3a and 3b.
Then, a shield cover 8 made of a magnetic material such as a bowl-shaped iron plate is placed over the magnetic circuit 1, and the cancel magnet 2a is attached to the inner bottom of the magnetic circuit 1.
In a speaker magnetically shielded by placing the cancel magnet 2a in close contact with the upper plate 3a and fitting and fixing the outer edge of the shield cover 8 to the expanded outer periphery of the lower plate 3b, the outer circumferential side wall of the shield cover 8 has a radial direction. Slit 8a for elastic biasing of
A magnetically shielded speaker with
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6297190U JPH0420800U (en) | 1990-06-14 | 1990-06-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6297190U JPH0420800U (en) | 1990-06-14 | 1990-06-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0420800U true JPH0420800U (en) | 1992-02-21 |
Family
ID=31592606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6297190U Pending JPH0420800U (en) | 1990-06-14 | 1990-06-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0420800U (en) |
-
1990
- 1990-06-14 JP JP6297190U patent/JPH0420800U/ja active Pending