JPH03122513U

JPH03122513U -

Info

Publication number: JPH03122513U
Application number: JP3179290U
Authority: JP
Priority date: 1990-03-26
Filing date: 1990-03-26
Publication date: 1991-12-13

Description

[Brief explanation of the drawing]

第１図は本考案の電磁駆動装置の要部の縦断面
図、第２図ａ〜ｄは電磁石の動作を示す要部の簡
略断面図、第３図は電磁石の軸方向位置（Ｘ軸）
における該電磁石に作用する合力（Ｆ軸）の関係
を通電時と非通電時について示したグラフ、第４
図は第３図の通電時の電流を逆にした場合の同様
なグラフ、第５図は本考案の電磁駆動装置を用い
て構成した電磁スイツチの簡略説明図、第６図ａ
及びｂは本考案の電磁駆動装置を用いて構成した
開閉可能なホルダーを有する着脱装置の簡略説明
図、第７図は制御回路の一例を示す回路図、第８
図は従来例を示す簡略説明図である。Ａ…電磁駆動装置、１…本体、２ａ，２ｂ…永
久磁、３…電磁石、４…軸体、５…本体部、６…
キヤツプ、７…段部、８…支持孔、６′…凹部、
９…開口、１０…周縁部、１１，１１ａ，１１ｂ
…磁極部、１２…コイル、１３…緩衝体、１４…
反射鏡、１５…光フアイバー、１６…パルス発生
回路、１７…電流供給回路、１８…アナログスイ
ツチ、１９…増幅器、２０…アーム、２１…ホル
ダー。 Fig. 1 is a longitudinal sectional view of the main parts of the electromagnetic drive device of the present invention, Figs. 2 a to d are simplified sectional views of the main parts showing the operation of the electromagnet, and Fig. 3 is the axial position of the electromagnet (X axis).
Graph showing the relationship between the resultant force (F axis) acting on the electromagnet when energized and when not energized, 4th
The figure is a similar graph when the current when energized is reversed in Figure 3, Figure 5 is a simplified explanatory diagram of an electromagnetic switch constructed using the electromagnetic drive device of the present invention, and Figure 6 a.
and b are simplified explanatory diagrams of a detachable device having an openable/closable holder configured using the electromagnetic drive device of the present invention, FIG. 7 is a circuit diagram showing an example of a control circuit, and FIG.
The figure is a simplified explanatory diagram showing a conventional example. A... Electromagnetic drive device, 1... Main body, 2a, 2b... Permanent magnet, 3... Electromagnet, 4... Shaft, 5... Main body, 6...
Cap, 7...Step part, 8...Support hole, 6'...Recessed part,
9... Opening, 10... Periphery, 11, 11a, 11b
...Magnetic pole part, 12...Coil, 13...Buffer, 14...
Reflector, 15... Optical fiber, 16... Pulse generation circuit, 17... Current supply circuit, 18... Analog switch, 19... Amplifier, 20... Arm, 21... Holder.

Claims

[Claims for Utility Model Registration] (1) An opening penetrating the front and back sides is formed in the center, and two permanent magnets magnetized parallel to the axial direction of the opening are placed inside a hollow body with opposite magnetic poles. Electromagnets are arranged coaxially and parallel to each other and have magnetic pole parts of ferromagnetic material at both ends, and are arranged coaxially between the permanent magnets, and a shaft body extending from both ends of the electromagnet is inserted into the main body through the opening. An electromagnetic drive device, characterized in that it is supported slidably in the axial direction in a support hole, and at least one of the shafts protrudes from a main body. (2) The electromagnetic drive device according to claim 1, wherein the magnetic pole portions at both ends of the electromagnet are shaped so as to be loosely inserted into openings of opposing permanent magnets. (3) The electromagnetic drive device according to claim 1, wherein a buffer is interposed between the magnetic pole portion of the electromagnet and the inner peripheral edge of the support hole of the main body. (4) The electromagnetic drive device according to claim 1, which uses two permanent magnets having the same shape and characteristics and an electromagnet in which the characteristics of both magnetic pole parts are symmetrical. (5) A claim for utility model registration in which the electromagnet is de-energized immediately after a specific part of the electromagnet passes through the midpoint of the magnetic force where the attractive forces from the opposing permanent magnets are equal for both magnetic pole parts of the electromagnet in the de-energized state. The electromagnetic drive device according to scope 1.