JPH02118476U - - Google Patents
Info
- Publication number
- JPH02118476U JPH02118476U JP2722789U JP2722789U JPH02118476U JP H02118476 U JPH02118476 U JP H02118476U JP 2722789 U JP2722789 U JP 2722789U JP 2722789 U JP2722789 U JP 2722789U JP H02118476 U JPH02118476 U JP H02118476U
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- movable coil
- motor
- integrally provided
- coil
- 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
- 230000035699 permeability Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Description
第１図は本考案の一実施例を示す断面図、第２
図は本考案にかかる高透磁率板の他の構成例を示
す平面図、第３図は本考案と従来のコイルのスト
ローク量に対するトルク変化を示す特性図、第４
図はボイスコイルモータを用いたデイスク装置の
一例を示す平面図、第５図は従来のボイスコイル
モータを示す断面図、第６図は第５図の回転部を
示す斜視図、第７図は薄型化を図つたボイスコイ
ルモータの一例を示す断面図である。
２０，２１，２２……高透磁率板、５１……ハ
ウジング、５２，５３……ヨーク、５６，５７…
…永久磁石、５８……コイル基板、５９……平板
状コイル。
Fig. 1 is a sectional view showing one embodiment of the present invention;
The figure is a plan view showing another example of the configuration of the high permeability plate according to the present invention, Figure 3 is a characteristic diagram showing the torque change with respect to the stroke amount of the coil of the present invention and the conventional coil, and Figure 4 is a
The figure is a plan view showing an example of a disk device using a voice coil motor, FIG. 5 is a sectional view showing a conventional voice coil motor, FIG. 6 is a perspective view showing the rotating part of FIG. 5, and FIG. FIG. 2 is a cross-sectional view showing an example of a thinner voice coil motor. 20, 21, 22... High magnetic permeability plate, 51... Housing, 52, 53... Yoke, 56, 57...
...Permanent magnet, 58... Coil substrate, 59... Flat coil.
Claims (1)
、この永久磁石に対向配設され且つこの永久磁石
に沿つて円弧軌跡を描きながら回動する可動コイ
ルとを備えた磁気記録再生装置用ボイスコイルモ
ータにおいて、前記可動コイルの前記永久磁石と
は反対の側に高透磁率板が前記可動コイルと一体
的に設けられていることを特徴とするボイスコイ
ルモータ。 (2) 請求項１の記載において、高透磁率板が可
動コイルの少なくとも可動方向に直交する面に一
体的に設けられていることを特徴とするボイスコ
イルモータ。[Scope of Claim for Utility Model Registration] (1) A permanent magnet for generating a magnetic field disposed on one side, and a movable coil disposed opposite to this permanent magnet and rotating while drawing an arc locus along this permanent magnet. A voice coil motor for a magnetic recording/reproducing device comprising: a high magnetic permeability plate integrally provided with the movable coil on a side opposite to the permanent magnet of the movable coil. motor. (2) The voice coil motor according to claim 1, wherein the high magnetic permeability plate is integrally provided on at least a surface of the movable coil orthogonal to the moving direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2722789U JPH02118476U (en) | 1989-03-13 | 1989-03-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2722789U JPH02118476U (en) | 1989-03-13 | 1989-03-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02118476U true JPH02118476U (en) | 1990-09-21 |
Family
ID=31249537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2722789U Pending JPH02118476U (en) | 1989-03-13 | 1989-03-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02118476U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013114993A1 (en) * | 2012-01-30 | 2013-08-08 | 三菱電機株式会社 | Magnetic circuit |
-
1989
- 1989-03-13 JP JP2722789U patent/JPH02118476U/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013114993A1 (en) * | 2012-01-30 | 2013-08-08 | 三菱電機株式会社 | Magnetic circuit |
| CN104094368A (en) * | 2012-01-30 | 2014-10-08 | 三菱电机株式会社 | Magnetic circuit |
| JPWO2013114993A1 (en) * | 2012-01-30 | 2015-05-11 | 三菱電機株式会社 | Magnetic circuit |
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