JPS6219713U - - Google Patents

Description

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

第１図はこの考案の一実施例を示す回路略図、
第２図はこの考案の他の実施例を示す回路図、第
３図は従来の電磁石装置の回路図である。 ＶＳは電源、ＯＳは操作スイツチ、ＬＳはリー
ドスイツチ、ＶＤは電圧降下素子としての抵抗器
、ＥＭは電磁石、ＭＣは電磁石のコイル、ＭＩは
電磁石の可動鉄心、ＳＩは電磁石の固定鉄心、Ａ
Ｇは鉄心間の空隙、Ｃは電圧降下素子としてのコ
ンデンサ、ＲＣは整流回路である。 FIG. 1 is a circuit diagram showing an embodiment of this invention.
FIG. 2 is a circuit diagram showing another embodiment of this invention, and FIG. 3 is a circuit diagram of a conventional electromagnet device. VS is the power supply, OS is the operation switch, LS is the reed switch, VD is the resistor as a voltage drop element, EM is the electromagnet, MC is the coil of the electromagnet, MI is the movable core of the electromagnet, SI is the fixed core of the electromagnet, A
G is a gap between iron cores, C is a capacitor as a voltage drop element, and RC is a rectifier circuit.

Claims (1)

【実用新案登録請求の範囲】 (1) 電源の両端間に、リードスイツチおよび電
圧降下素子から成る並列回路と、電磁石のコイル
とを直列に接続し、前記リードスイツチを前記電
磁石の鉄心が作る空隙の近くに配置したことを特
徴とする電磁石装置。 (2) 電圧降下素子が抵抗器である実用新案登録
請求の範囲第１項記載の電磁石装置。 (3) 電圧降下素子がコンデンサである実用新案
登録請求の範囲第１項記載の電磁石装置。 (4) リードスイツチが常開形のスイツチである
実用新案登録請求の範囲第１項ないし第３項のい
ずれか記載の電磁石装置。[Claims for Utility Model Registration] (1) A parallel circuit consisting of a reed switch and a voltage drop element, and a coil of an electromagnet are connected in series between both ends of a power supply, and the reed switch is connected to the air gap formed by the iron core of the electromagnet. An electromagnetic device characterized by being placed near the. (2) The electromagnet device according to claim 1, wherein the voltage drop element is a resistor. (3) The electromagnet device according to claim 1, wherein the voltage drop element is a capacitor. (4) The electromagnetic device according to any one of claims 1 to 3, wherein the reed switch is a normally open switch.