JPS6457608U

JPS6457608U -

Info

Publication number: JPS6457608U
Application number: JP15242287U
Authority: JP
Priority date: 1987-10-05
Filing date: 1987-10-05
Publication date: 1989-04-10

Description

[Brief explanation of drawings]

第１図は本考案の一実施例に係るソレノイド駆
動装置の構成図、第２図は同装置の動作を説明す
るためのタイムチヤート、第３図は本考案の他の
実施例に係るソレノイド駆動装置の構成図である
。５，３１……双方向形のソレノイド、６，３２
……ヨーク、７，３４……プランジヤ、８，３６
ａ，３６ｂ……コイル、９，３５……永久磁石、
１０……コイルスプリング、１１，４１……セン
サ駆動用永久磁石、１２，４２，４３……リード
スイツチ、１３，１３ａ……駆動装置、１７，２
１……ナンドゲート、２４，２４ａ……電流供給
回路、Ｓ_１……閉指令信号、Ｓ_２……開指令信号
。 Fig. 1 is a block diagram of a solenoid drive device according to an embodiment of the present invention, Fig. 2 is a time chart for explaining the operation of the device, and Fig. 3 is a solenoid drive according to another embodiment of the present invention. It is a block diagram of a device. 5, 31... Bidirectional solenoid, 6, 32
...Yoke, 7,34...Plunger, 8,36
a, 36b... Coil, 9, 35... Permanent magnet,
10... Coil spring, 11, 41... Permanent magnet for sensor drive, 12, 42, 43... Reed switch, 13, 13a... Drive device, 17, 2
1...NAND gate, 24, 24a...Current supply circuit, _S1 ...Close command signal, _S2 ...Open command signal.

Claims

[Claims for Utility Model Registration] (1) A plunger provided to be freely movable in the axial direction, means for selectively holding the plunger in a first stable position and a second stable position in the axial direction, at least one provided to surround the plunger and perform control to move the plunger from the first stable position to the second stable position, and control to move the plunger from the second stable position to the first stable position. a sensor-driving permanent magnet fixed to a part that moves in the same manner as the plunger; and a sensor-driving permanent magnet fixed to a part that moves in the same manner as the plunger; at least one magnetic sensor whose output is switched by being magnetically coupled to a permanent magnet;
a current supply circuit that selectively supplies to the coil a control current necessary to move the plunger to the first stable position and a control current necessary to move the plunger to the second stable position; and this current supply. means for selectively supplying a first stable position designation signal and a second stable position designation signal to a circuit; a path for the first stable position designation signal applied to the current supply circuit; and a second stable position designation signal; and a gate circuit inserted into each of the signal passages, the gate circuit blocking the corresponding passage based on the output of the magnetic sensor when the plunger reaches a target stable position. Solenoid drive device. (2) The solenoid drive device according to claim 1, wherein the magnetic sensor is either a reed switch or a magnetoresistive element.