JPH0434876U - - Google Patents
Info
- Publication number
- JPH0434876U JPH0434876U JP7490690U JP7490690U JPH0434876U JP H0434876 U JPH0434876 U JP H0434876U JP 7490690 U JP7490690 U JP 7490690U JP 7490690 U JP7490690 U JP 7490690U JP H0434876 U JPH0434876 U JP H0434876U
- Authority
- JP
- Japan
- Prior art keywords
- voice coil
- gap
- axis
- yoke
- outer yoke
- 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
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Description
第１図は本考案の実施例を示す正面図一部を断
面で示してある。第２図は第１図に示す−断
面に沿う平断面図、第３図は従来例の平断面図で
ある。
１……ベース、１１……スタンド、１２……回
動軸、１３……軸受、１４……支持部、２……回
動レバー、３……ボイスコイル、４……外ヨーク
、５……内ヨーク、６……磁石部、７……空隙。
FIG. 1 is a partially sectional front view showing an embodiment of the present invention. FIG. 2 is a plan sectional view taken along the cross section shown in FIG. 1, and FIG. 3 is a plan sectional view of the conventional example. DESCRIPTION OF SYMBOLS 1... Base, 11... Stand, 12... Rotating shaft, 13... Bearing, 14... Support part, 2... Rotating lever, 3... Voice coil, 4... Outer yoke, 5... Inner yoke, 6... Magnet part, 7... Air gap.
Claims (1)
て支持された回動軸と、端部にカツプ型のボイス
コイルの一方端が固定され、かつ前記回動軸を軸
にして揺動しうる回動レバーと、前記ベースに設
けられた支持部に固定されたカツプ状の外ヨーク
と、前記外ヨークの内側に空隙を介して設けられ
た内ヨークと、前記空隙の中で前記ボイスコイル
が往復移動しうるように配置されたボイスコイル
モータにおいて、 前記空隙の前記回動軸に垂直の方向の空隙長さ
を前記回動軸に平行の方向の空隙長さより大きく
したことを特徴とするボイスコイルモータ。 ２ 軸に垂直な断面を円形に形成した前記ボイス
コイルと、 軸に垂直な断面を楕円形に形成した前記外ヨー
クおよび内ヨークとを設け、 前記外ヨークの長径部分と前記内ヨークの短径
部分とを前記回動軸に垂直の方向に配置した請求
項１記載のボイスコイルモータ。[Claims for Utility Model Registration] 1. A rotating shaft supported via a bearing on a stand provided on a base, and one end of a cup-shaped voice coil fixed to the end, and the rotating shaft is a rotating lever that can be pivoted around a pivot; a cup-shaped outer yoke fixed to a support provided on the base; an inner yoke provided inside the outer yoke with a gap in between; and the gap. In the voice coil motor, the voice coil is arranged so that the voice coil can reciprocate within the air gap, the gap length in the direction perpendicular to the rotation axis of the gap is larger than the gap length in the direction parallel to the rotation axis. A voice coil motor that is characterized by: 2. The voice coil has a circular cross section perpendicular to the axis, and the outer yoke and inner yoke have an elliptical cross section perpendicular to the axis, and the major axis of the outer yoke and the minor axis of the inner yoke are provided. 2. The voice coil motor according to claim 1, wherein said portion is arranged in a direction perpendicular to said rotation axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7490690U JPH0434876U (en) | 1990-07-13 | 1990-07-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7490690U JPH0434876U (en) | 1990-07-13 | 1990-07-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0434876U true JPH0434876U (en) | 1992-03-24 |
Family
ID=31615016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7490690U Pending JPH0434876U (en) | 1990-07-13 | 1990-07-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0434876U (en) |
-
1990
- 1990-07-13 JP JP7490690U patent/JPH0434876U/ja active Pending