JPS6331507U

JPS6331507U -

Info

Publication number: JPS6331507U
Application number: JP12447886U
Authority: JP
Priority date: 1986-08-13
Filing date: 1986-08-13
Publication date: 1988-03-01

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の一部破断正面図、
第２図はその自己保持型電磁石装置６の一部破断
正面図、第３図は第２図のＡ―Ａ線断面図、第４
図と第５図とはリードスイツチ１４の説明図、第
６図は本考案の他の実施例の一部破断正面図であ
る。６……自己保持型電磁石装置、７……ソレノイ
ドコイル、８……プランジヤ、９……スプリング
、１０……固定鉄心、１１……ヨーク、１２……
永久磁石。 FIG. 1 is a partially cutaway front view of an embodiment of the present invention.
FIG. 2 is a partially cutaway front view of the self-holding electromagnet device 6, FIG. 3 is a sectional view taken along line A--A in FIG. 2, and FIG.
5 and 5 are explanatory views of the reed switch 14, and FIG. 6 is a partially cutaway front view of another embodiment of the present invention. 6... Self-holding electromagnet device, 7... Solenoid coil, 8... Plunger, 9... Spring, 10... Fixed iron core, 11... Yoke, 12...
permanent magnet.

Claims

[Scope of Claim for Utility Model Registration] (1) A magnetic circuit formed by a fixed iron core, a plunger, and a yoke, in which the plunger is attracted to the fixed iron core against the counter-attraction biasing force of a spring by energizing a solenoid coil. A permanent magnet that maintains the attracted state of the plunger with respect to the fixed iron core even when the solenoid coil is de-energized in the attracted state of the plunger to the fixed iron core due to the excitation of the solenoid coil is inserted therein, and the magnetic flux of the permanent magnet is inserted into the solenoid coil. In a self-holding electromagnetic device, the plunger is moved away from the fixed iron core and stopped at a preset stopper position by the biasing force of the spring in the counter-attraction direction by applying a current to counteract the current. A self-holding type electromagnet device, characterized in that it is provided with a reed switch that is operated from one side to the other side depending on the presence or absence of leakage magnetic flux from the permanent magnet, which changes depending on whether the permanent magnet is in use or not. (2) The self-holding electromagnet device according to claim 1, wherein the reed switch is a reed switch that is turned on by leakage magnetic flux from a permanent magnet. (3) The self-holding electromagnet device according to claim 1, wherein the reed switch is a reed switch that is turned off by leakage magnetic flux from a permanent magnet.