JPH0480193U

JPH0480193U -

Info

Publication number: JPH0480193U
Application number: JP12390090U
Authority: JP
Priority date: 1990-11-26
Filing date: 1990-11-26
Publication date: 1992-07-13

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例による消磁装置の
操作回路を示す回路図、第２図は従来およびこの
考案の消磁装置の主回路を示す回路図、第３図は
従来の消磁装置の操作回路を示す回路図である。１は電源、２は電源スイツチ、３は第１の常閉
接点（ｂ接点）、４は正温度特性サーミスタ、５
は消磁コイル、１３は第１のコンデンサ、１４は
第１リレー、１７ａは第１の消磁回路動作スイツ
チ、１７ｂは第２の消磁回路動作スイツチ、２５
は第２のコンデンサ、２７は第２のリレー、３０
は発光ダイオード。なお、図中、同一符号は同一
、または相当部分を示す。 Fig. 1 is a circuit diagram showing the operation circuit of a degaussing device according to an embodiment of the present invention, Fig. 2 is a circuit diagram showing the main circuit of a conventional degaussing device and the degaussing device of this invention, and Fig. 3 is a circuit diagram showing the operation of a conventional degaussing device. It is a circuit diagram showing a circuit. 1 is a power supply, 2 is a power switch, 3 is a first normally closed contact (B contact), 4 is a positive temperature characteristic thermistor, 5
13 is a degaussing coil, 13 is a first capacitor, 14 is a first relay, 17a is a first degaussing circuit operation switch, 17b is a second degaussing circuit operation switch, 25
is the second capacitor, 27 is the second relay, 30
is a light emitting diode. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

A main circuit in which a power switch, a first normally closed contact, a positive temperature characteristic thermistor, and a degaussing coil are connected in series to a power supply, a first capacitor that is charged at least after the power switch is turned on, and a terminal of the first capacitor. a first relay that turns off the first normally closed contact when the voltage reaches a set value; and a first demagnetizer that is switched to discharge the first capacitor and turn off the first relay. A circuit operation switch, a second capacitor that continues to be charged even after the automatic degaussing operation is completed by turning off the first normally closed contact, and a second capacitor that is turned on when the terminal voltage of the second capacitor reaches a set value. a second degaussing circuit operating switch that discharges the second capacitor when switched in conjunction with the first degaussing circuit operating switch when the second relay is on; and a light emitting diode that lights up when the second relay is turned off.