CN2327713Y

CN2327713Y - Controller for washing machine

Info

Publication number: CN2327713Y
Application number: CN 97247871
Authority: CN
Inventors: 王颖; 林云根
Original assignee: Wuxi Little Swan Co Ltd
Current assignee: Wuxi Little Swan Co Ltd
Priority date: 1997-11-26
Filing date: 1997-11-26
Publication date: 1999-07-07
Anticipated expiration: 2007-11-26

Abstract

The utility model relates to a controlling device for full automatic washing machines, which senses whether a coin exists in a passage of a releasing device by a Hall circuit composed of a Hall block, an amplifier and a trigger and generates a transient magnetic field. The work and the turning off of a washing machine are controlled by utilizing an electrical signal which is generated by the Hall block in the transient magnetic field. Thus, the washing machine is not only suitable for families, but also suitable for commercial washhouses without the care of people.

Description

Controller of washer

The utility model relates to a kind of control device of automatic washing machine.

Present commercially available automatic washing machine in use though can realize the fully automatic working washing, float, take off, but still need someone be looked after.Therefore, be only applicable to family, and can not be used for uncared for laundry.The scope of application is wideless.

The purpose of this utility model is to provide a kind of controller of washer, make washing machine need not look after, applied widely.

The design feature of controller of washer of the present utility model is, it comprises transformer (T), secondary and the rectifier (D1) that this transformation rises joins, the output of rectifier (D1) is connected on the mu balanced circuit two ends of being made up of capacitor (C) and voltage-stabiliser tube (D2), and the output of mu balanced circuit is received on two Hall circuits (1); Wherein, Hall circuit is made of Hall piece (2), amplifier (3) and trigger (4), Hall piece (2) places the passage of coin-feed machine (9), the contact place of the Hall piece (2) of the trigger of one Hall circuit (4) and another Hall circuit is connected to trigger (5) and relay (6) successively between washing machine (7).

Because have in the passage of controller of washer of the present utility model by Hall piece induction coin delivery device, the instantaneous existence of no coin, make when instantaneous existence of coin and generation transient magnetic field, Hall piece two ends can produce a signal of telecommunication, this signal of telecommunication is through amplifying, handling, drive the relay adhesive, thereby make washing machine get electric work.The utility model not only makes washing machine be applicable to family, also is applicable to uncared for laundry.

Below in conjunction with accompanying drawing the utility model is described in further detail:

Fig. 1 is a controller of washer electrical schematic diagram of the present utility model;

Fig. 2 is the coin delivery device schematic diagram of controller of washer;

Fig. 3 is the coin structural representation.

See Fig. 1, Fig. 2, when K switch is closed, the input of transformer T has 220 volts of voltages, these 220 volts of voltages become 6 volts after transformer T step-down, after bridge rectifier D 1 rectification, capacitor C filtering and Zener diode D2 voltage stabilizing, become 6 volts of galvanic currents and press, this DC voltage is given two Hall circuits 1 respectively by resistance R, as the supply voltage of its work.The utility model also comprises a coin delivery device 9, and Hall piece 2 places the path 10 of this coin delivery device.When no coin is thrown in the path 10 of coin delivery device 9, the induction of Hall piece is less than the existence in magnetic field, no transient magnetic field exists in the path 10, the Hall circuit 1 that is made of Hall piece 2, amplifier 3 and trigger 4 does not just have signal to input to trigger 5, and trigger 5 can not trigger, and is output as low level, relay 6 can not adhesive, make electric current can't flow through relay 6, washing machine just can not switched on, and just can not work yet.When having coin to throw in the path 10 of coin delivery device 9, Hall piece 2 will be sensed a fleeting magnetic field and exist, feasible high level pulse of Hall circuit 1 output that constitutes by Hall piece 2, amplifier 3 and trigger 4, trigger 5 is triggered, make its output become stable high level, thereby make relay 6 adhesives, washing machine 7 get electric work by low level.

See Fig. 3, said coin comprises dielectric material block 11 in the foregoing description, and a rectangular recess is opened at the one side center of this dielectric material block, fixes a permanent-magnet material sheet 12 in the groove, thereby constitutes a complete plastics coin with magnetic.

Claims

1. controller of washer, it is characterized in that comprising transformer (T), secondary and the rectifier (D1) of this transformer joins, the output of rectifier (D1) is connected on the mu balanced circuit two ends of being made up of capacitor (C) and voltage-stabiliser tube (D2), and the output of mu balanced circuit is received on two Hall circuits (1); Wherein, Hall circuit is made of Hall piece (2), amplifier (3) and trigger (4), and Hall piece (2) places the passage of coin-feed machine (9); The contact place of the Hall piece (2) of the trigger of one Hall circuit (4) and another Hall circuit is connected to trigger (5) and relay (6) successively between washing machine (7).

2. control device according to claim 1 is characterized in that said coin comprises dielectric material block (11), and the one side center of this dielectric material block is fluted, and groove is embedded with permanent-magnet material sheet (12).