JPH0166286U

JPH0166286U -

Info

Publication number: JPH0166286U
Application number: JP1987160380U
Authority: JP
Priority date: 1987-10-20
Filing date: 1987-10-20
Publication date: 1989-04-27

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す洗濯機の制
御装置の回路ブロツク図、第２図は従来の洗濯機
の制御装置の回路ブロツク図である。図中、１は電動機（脱水槽）、２はサイリスタ
、３は交流電源（商用）、４，９はスイツチ（脱
水槽蓋用）、５は操作スイツチ、６はタイマ回路
、７はカプラ、８はタイマ回路（一時停止機能付
き）、１０は２ナンド（ＡＮＤ：論理回路）回路
、１１はｎｐｎ型トランジスタ、１２は表示装置
、１３は表示制御回路である。 FIG. 1 is a circuit block diagram of a washing machine control device showing an embodiment of this invention, and FIG. 2 is a circuit block diagram of a conventional washing machine control device. In the figure, 1 is a motor (dehydration tank), 2 is a thyristor, 3 is an AC power supply (commercial), 4 and 9 are switches (for the dehydration tank lid), 5 is an operation switch, 6 is a timer circuit, 7 is a coupler, 8 1 is a timer circuit (with a temporary stop function), 10 is a 2 NAND (AND: logic circuit) circuit, 11 is an npn type transistor, 12 is a display device, and 13 is a display control circuit.

Claims

[Claims for Utility Model Registration] AC power is applied via a thyristor to an electric motor that rotationally drives a dehydration tank of a washing machine, and a trigger signal is input to the gate of the thyristor to control the rotation of the motor, and the dehydration tank lid is A control device that controls the rotation of the electric motor to stop when opened, includes a switch that is turned on when the dehydration tank lid is opened and turned off when it is closed, and a dehydration time set by the operating switch of the washing machine. a timer circuit that counts, stops the counting operation when the dehydration tank lid is opened and the switch is turned on, and outputs a signal for controlling rotation of the electric motor during the counting operation; a logic circuit that outputs a signal for controlling the rotation of the electric motor when the switch is turned on; and a transistor circuit that is turned on by the control signal output from the logic circuit, and the switch is turned on. Sometimes the transistor circuit is turned on by a control signal from the timer circuit.
When the transistor circuit is ON, a trigger is applied to the gate of the thyristor to turn the thyristor ON, and when the thyristor is ON, the rotation of the motor is controlled, and when the switch is OFF, the thyristor is turned ON. A washing machine control device, characterized in that the control signal is not output from the timer circuit.