JPS59161386U - electromagnetic drive device - Google Patents

electromagnetic drive device

Info

Publication number
JPS59161386U
JPS59161386U JP5510983U JP5510983U JPS59161386U JP S59161386 U JPS59161386 U JP S59161386U JP 5510983 U JP5510983 U JP 5510983U JP 5510983 U JP5510983 U JP 5510983U JP S59161386 U JPS59161386 U JP S59161386U
Authority
JP
Japan
Prior art keywords
drive device
permanent magnet
electromagnetic drive
magnetic circuit
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
Application number
JP5510983U
Other languages
Japanese (ja)
Other versions
JPS642539Y2 (en
Inventor
梅原　輝雄
岡田　三郎
Original Assignee
日立金属株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 日立金属株式会社 filed Critical 日立金属株式会社
Priority to JP5510983U priority Critical patent/JPS59161386U/en
Publication of JPS59161386U publication Critical patent/JPS59161386U/en
Application granted granted Critical
Publication of JPS642539Y2 publication Critical patent/JPS642539Y2/ja
Granted legal-status Critical Current

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  • Moving Of Heads (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、従来の電磁駆動装置の側面図、第２図は、第
１図のＡ−Ａ矢視横断平面図、第３図イ。 口、ハ、二は、本考案の一実施例に係わる電磁駆動装置
の磁気回路を説明するための正面図、第４図は各種希土
類コバルト磁石の減磁曲線を示す図である。 １：センターヨーク片、２：センターポール、３゜３ａ
：サイドヨーク片、４：カンタ−ヨーク片、５：ムービ
ングコイル、６：ショートリング片、７゜７ａ＝永久磁
石、８：着磁ヨーク片。 ７（ム） １　。FIG. 1 is a side view of a conventional electromagnetic drive device, FIG. 2 is a cross-sectional plan view taken along the line A--A in FIG. 1, and FIG. Figures 4 and 4 are front views for explaining the magnetic circuit of an electromagnetic drive device according to an embodiment of the present invention, and Figure 4 is a diagram showing demagnetization curves of various rare earth cobalt magnets. 1: Center yoke piece, 2: Center pole, 3°3a
: Side yoke piece, 4: Canter yoke piece, 5: Moving coil, 6: Short ring piece, 7°7a=permanent magnet, 8: Magnetized yoke piece. 7 (mu) 1.

Claims (1)

【実用新案登録請求の範囲】 １　強磁性材料からなるヨークと永久磁石とを含む磁気
回路と、該磁気回路内に移動自在に挿入された可動コイ
ルとをそなえた電磁駆動装置に、おいて、前記磁気回路
の組立が完了するまでの間に前記永久磁石は、実質的に
反磁界が加わらない状態で着磁されることを含む少なく
とも１回の着磁を施されたことを特徴とする電磁駆動装
置。 ２　永久磁石として角形性を有する減磁特性を示す永久
磁石を用Ｃ）たことを特徴とする実用新案登録請求の範
囲第１項記載の電磁駆動装置。[Claims for Utility Model Registration] 1. In an electromagnetic drive device comprising a magnetic circuit including a yoke made of a ferromagnetic material and a permanent magnet, and a movable coil movably inserted into the magnetic circuit, The electromagnetic device is characterized in that the permanent magnet is magnetized at least once, including magnetization in a state in which no demagnetizing field is applied, until the assembly of the magnetic circuit is completed. Drive device. 2. The electromagnetic drive device according to claim 1, characterized in that the permanent magnet is a permanent magnet that exhibits demagnetization characteristics and has rectangularity.
JP5510983U 1983-04-13 1983-04-13 electromagnetic drive device Granted JPS59161386U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5510983U JPS59161386U (en) 1983-04-13 1983-04-13 electromagnetic drive device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5510983U JPS59161386U (en) 1983-04-13 1983-04-13 electromagnetic drive device

Publications (2)

Publication Number Publication Date
JPS59161386U true JPS59161386U (en) 1984-10-29
JPS642539Y2 JPS642539Y2 (en) 1989-01-20

Family

ID=30185434

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5510983U Granted JPS59161386U (en) 1983-04-13 1983-04-13 electromagnetic drive device

Country Status (1)

Country Link
JP (1) JPS59161386U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6311898U (en) * 1986-07-07 1988-01-26

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6311898U (en) * 1986-07-07 1988-01-26

Also Published As

Publication number Publication date
JPS642539Y2 (en) 1989-01-20

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