CN2654650Y

CN2654650Y - Timing controller for washing machine

Info

Publication number: CN2654650Y
Application number: CNU2003201056567U
Authority: CN
Inventors: 李令奇; 史勃
Original assignee: Shenyang Institute of Automation of CAS
Current assignee: Shenyang Institute of Automation of CAS
Priority date: 2003-11-28
Filing date: 2003-11-28
Publication date: 2004-11-10
Anticipated expiration: 2013-11-28

Abstract

The utility model relates to a timing controller of a washing machine, which consists of a timing and display part, a microprocessor, a peripheral circuit and an input keyboard, wherein the microprocessor is a core device and is connected with a digital tube in the timing and display part through a latch; the parallel interface chip is respectively communicated with an input keyboard and a switching value interface of the photoelectric isolator in the peripheral circuit, and is communicated with the analog quantity in the peripheral circuit through the analog-to-digital converter; the temperature detector in the peripheral circuit is sent to the microprocessor through the analog-to-digital converter, and the solid relay is connected with the microprocessor through the parallel interface. The utility model is used for control washing machine has washed the clothes in the washing machine in predetermined (regulation) time, simple structure, practicality.

Description

The washing machine timing controller

Technical field

The utility model relates to a kind of washing machine timing controller, be used to control washing machine in the time of predetermined (regulation) with washing machine in clothes wash.

Background technology

At present no matter the automatic washing machine of selling on the market is impeller-type or drum-type, also no matter is mechanical timer formula or electronic timer formula, it all is the time of implementation that is used to control the functions such as washing, float, get rid of of washing machine, as long as start washing machine, washing machine just will be at a fixed time finished whole laundries after (whole washes, floats, gets rid of the time) and is moved.People are in order in time to take out airing with clothes from washing machine after laundry, have to wait for the moment that the laundry man does to finish, promptly treat after the whole actions of washing machine are finished clothes to be taken out airing, this has influenced people's routine work or rest, the arrangement of particularly going out to a great extent.

The utility model content

Dry the inconvenience that causes in order to overcome can not in time the clothing that washes, dries being taken out of may existing from washing machine, the purpose of this utility model provides a kind of washing machine timing controller that can artificially be scheduled to the time of washed drying clothing.

To achieve these goals, the technical solution of the utility model is: be made up of timing and demonstration, microprocessor, peripheral circuit and input keyboard, wherein microprocessor is a core devices, is connected with charactron in timing and the display part by latch; By the parallel interface chip respectively with input keyboard and peripheral circuit in the switching value interface of photoisolator, communicate by letter with analog quantity in the peripheral circuit by analog-digital converter; Temperature Detector is delivered to microprocessor through analog-digital converter in the peripheral circuit, and its solid-state relay is connected with microprocessor by parallel interface;

Wherein: described microprocessor is furnished with house dog and buzzer; Described timing and state show by clock and charactron and latch and form; Described timing and state show can be furnished with light emitting diode, is electrically connected with microprocessor through latch.

The utlity model has following advantage:

The utility model be used to control washing machine in the time of predetermined (regulation) with washing machine in clothes wash, described preset time can be by increasing or reduce key input, and is conveniently feasible; After using the such timing controller of the utility model, be ready to the clothing that will wash before people can go to work in the morning, After Hours take out airing evening, and the clothing of having avoided washing morning will be stayed situation most of the day in washing machine; Also the clothing that can will wash at night is ready to, regularly back washing, and airing just can in time be taken out in the back of getting up morning, has avoided to wait till all hours evening, until laundry could be had a rest after finishing.

Description of drawings

Fig. 1 is the utility model structured flowchart.

Fig. 2 is the utility model circuit theory diagrams.

The specific embodiment

Be described in further detail below in conjunction with drawings and Examples the utility model.

As shown in Figure 1, the utility model is made up of following four parts:

One timing and demonstration, timing refers to the time timing of system, show and comprise that state shows and the demonstration of laundry pattern, what set that laundry shows during the time is to finish laundry after the time that shows, what show after starting timer is apart from finishing the required time of laundry, become in time, be countdown; When setting the laundry pattern, show the laundry pattern, attach most importance to respectively wash, in wash, gentle washing, the washing of various patterns, rinsing and drying time are calculated automatically by microprocessor.

One microprocessor is used for the control input, calculates and shows, is core of the present utility model.

One input keyboard, the operator selects laundry pattern and default laundry deadline by keyboard.

One peripheral circuit is used for external signals such as sensed water level, water temperature, the drive controlling cylinder just changes, reverses, at a high speed, action such as low speed, drying.

Circuit theory as shown in Figure 2, U1 is a microprocessor, 89C52 constitutes by single-chip microcomputer, and be furnished with house dog U4 and (adopt the MAX813 chip, English: Microprocessor Reset IC withWatchdog Part Summary), the stable of system strengthened greatly, the laundry pattern of washing machine, timing start and stop program all are to be finished by its control, and realize the control peripheral interface device, input keyboard read the functions such as demonstration of laundry state.The time timing of system and state show by clock chip U2 and the 1st～7 charactron DS1 to DS7 and latch U9 and form, can realize timing and the demonstration of current time, and there are LED 1 and latch U10 to do the auxiliary demonstration of state, the state of system is come into plain view, as: the power supply indication, the indication of laundry processes state, the indication etc. of reporting to the police.The 1st～8 input keyboard KB1 to KB8 is by parallel interface U3 (chip 82C55A) and microprocessor U1 interface, be used for time and setting regularly, the selection of laundry pattern, the start and stop of washing machine, the function of keyboard has: the pattern setting key, increase key, reduce key, acknowledgement key, cancel key, start key, stop key.The switching value input of peripheral circuit is by the 1st～4 photoisolator) DI1 to DI4 is by U3 and microprocessor U1 interface, and realization water level detecting and door detect; Its analog quantity input realizes that by analog-digital converter U5 (chip TLC0832) water temperature detects and water power is led detection; Chip U13 is a Temperature Detector, and the 1st～8 solid-state relay SSR1 to SSR8 realizes water filling control by parallel interface U3 and microprocessor U1 interface, draining control, cylinder just changes, the cylinder counter-rotating, at a high speed/the low speed switching, dry control, heater control, functions such as gate control.The utility model also is furnished with buzzer SPEAK and is used for prompting and warning.

The utility model course of work is: finish man-machine interaction by input keyboard, charactron, after the input scheduled time, microprocessor calculates the required time of current laundry pattern automatically, and before the required time of laundry, start washing machine, by peripheral circuit control washing machine, the laundry action was finished after the time of setting, embodied countdown function of the present utility model.

Preset time described in the utility model can or reduce the key input by increase, and is convenient feasible; The shortest scheduled time of controller control is the current selected required time of laundry pattern, as current laundry pattern need do washing 20 minutes, rinsing 10 minutes, dry 10 minutes, add water filling, draining is decided as circumstances require approximately needs 15 minutes, the then the shortest scheduled time is 55 minutes; Its longest scheduled time was 24 hours (not having actual use meaning more than 24 hours, so got 24 hours), as regularly 10 hours, be that above-mentioned laundry pattern needs 55 minutes equally, just clothes is being placed in the washing machine at 7 in the morning, washing powder is being placed in the washing powder box of washing machine, connecting water up and down, start this timing controller and timing 10 hours, then washing machine will begin the laundry action in the afternoon in 16: 5, carry out after 55 minutes, in 17 end, at this moment owner is on the scene, clothing can be taken out airing.

Claims

1. washing machine timing controller, it is characterized in that: be made up of timing and demonstration, microprocessor, peripheral circuit and input keyboard, wherein microprocessor is a core devices, is connected with charactron in timing and the display part by latch; By the parallel interface chip respectively with input keyboard and peripheral circuit in the switching value interface of photoisolator, communicate by letter with analog quantity in the peripheral circuit by analog-digital converter; Temperature Detector is delivered to microprocessor through analog-digital converter in the peripheral circuit, and its solid-state relay is connected with microprocessor by parallel interface.

2. by the described washing machine timing controller of claim 1, it is characterized in that: described microprocessor is furnished with house dog and buzzer.

3. by the described washing machine timing controller of claim 1, it is characterized in that: described timing and state show by clock and charactron and latch and form.

4. by the described washing machine timing controller of claim 3, it is characterized in that: described timing and state show can be furnished with light emitting diode, is electrically connected with microprocessor through latch.