JPS6249897A - Full-automatic washing machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a fully automatic washing machine.

(Prior art and its problems) Conventionally, some fully automatic washing machines were equipped with a timer to reserve the start time of programmed operation, but in such machines, the program was started from the user's desired end time of programmed operation. It is extremely troublesome to find the start time of driving by subtracting the time required for driving, and then setting the timer at that time, and there is a high risk of setting the time incorrectly, so it is not easy to use. There wasn't.

(Object of the Invention) The present invention has been made in view of the above points, and by configuring the desired end time of the program operation to be set as is, the present invention eliminates the drawbacks of the conventional method and provides an easy-to-use fully automatic washing machine. It provides an opportunity for

(Structure of the Invention) In a fully automatic washing machine, the present invention includes a reservation means for arbitrarily setting the end time of the program operation, and a program operation based on the reservation end time set by the reservation means and the required time of the program operation. and an operation start means that determines that the time calculated by the calculation means has been reached and starts the programmed operation, and achieves the intended purpose. It is.

(Example) Examples of the present invention shown in the drawings will be described in detail below.

FIG. 1 is a block diagram showing a control circuit of a fully automatic washing machine according to an embodiment of the present invention. In the figure, ] is an electronic control circuit that can automatically execute from the washing process to the final dehydration process, and basically consists of an electronic timer 2, a processing unit (CPU) 3, a clock control circuit 4,
Memory 5, input buffer 7 control circuit 6,
and an out buffer control circuit 7.

A indicates an external input section of the electronic control circuit 1. In this external input section A, 8 is a power switch that supplies power to the entire device, 9 is a lid switch that detects opening/closing of the lid, and 10 is a switch for the washing and dehydrating tub. Safety switch 11 that detects abnormal vibration is "
A water level switch that sets the water level in three levels: high, medium, and low, and detects when the water level in the tank has reached the set water level.
I2 is a key switch group, and 18 is a water flow switch that is linked to the water level setting operation of the water level switch 11 and closes a contact corresponding to the set water level to determine the strength of the water flow.

B indicates an external output section of the electronic control circuit 1, and in this external output section B, 13 is a drain valve, and 14 is a tank.

15 is a washing/drying motor that rotates a pulsator to generate water flow during washing and rinsing processes; 16 is a display; and 17 is a buzzer. Each part of the external output section B is controlled to be energized by a switching element such as a thyristor.

The CPU reads the status of each part in the external input section A via the input buffer control circuit 6, and reads process data from the memory 5 to determine processes such as washing (including water supply), draining, rinsing, and dehydration. Each part of the external output section B necessary for executing the process is controlled by applying a signal to the switching element from the out-buffer 7 control circuit 7, and the process transition is controlled by the electronic timer 2 working together with the CPU 3. It is done.

Next, FIG. 2 is a diagram showing the main parts of the operation panel section.

In the figure, 19 is a time display section that displays the current time, the required program time, etc., 20 is an hour key switch, 21 is a minute key switch, 22 is a reservation key switch, and 23 is a clock key switch. It is included in the key switch group 12.

Control in the above configuration will be explained. The clock function section is always energized, and the current time is displayed on the time display section 19. Incidentally, to set the current time, turn on the clock key switch 23.

At the same time, the hour key switch 20 and the minute key switch 21 are used.

Figure 3 is a flowchart for determining the start of operation, and Figure 4 is a display/
This is a notification flowchart. When all power switches 8 are turned on, the standard program as shown in FIG. Ru. In this state, if another program is selected using the program selection key switch in the key switch group 12, the required operating time will be displayed.

For example, if you want to end the standard program operation at 6:30 a.m. the next day, first turn on the reservation key switch 22, and the time display section 19 will switch from displaying the required time to displaying the reserved time, and 0:00 AM: Displays OOJ.However, while setting the reservation key switch 22 to ONL, operate the hour key switch 20 and minute key switch 21 to set the desired end time to 6:30 AM, and then press the start key. Turn on the switch.Then, the reservation end time is memorized and the reservation is completed, while the time display section 19
is the current time again, for example, if it is 10 p.m. [1 p.m.
0: OOJ is displayed. Then, the CPU 3 calculates the operation start time T based on the reservation end time T1, the time required for the program operation T2, and the time T3 (for example, 5 minutes) determined in consideration of circumstances such as water pressure. The calculation is performed using the formula T=T1-I2-I3, and in the above example, the driving start time T is 37 minutes before the reservation end time, that is, 5:53 a.m.

However, when the time reaches 5:53 a.m., the CPU 3 determines the start of operation, starts the standard program operation, and switches the display on the time display section 19 from the current time to the remaining time of the program operation, and displays 32 minutes. do. When the standard program operation is started, as shown in Figure 5, the washing process to the final dehydration process are automatically executed sequentially, while the remaining time display on the time display section I9 also counts down, and the tap water pressure increases. If the condition and drainage condition are as expected, the program operation will end at time T4 (6:25 a.m.), 12 hours (32 minutes) after the start time T (5:53 a.m.). , the remaining time becomes zero.

Now, if the water supply situation is bad and the water pressure is low, it will take longer than necessary to supply water, and it will take longer than 12 hours from the start of the washing process to the end of the final dehydration process. Considering these circumstances, the 13-hour period is set so that the program ends by the reservation end time T1, so there is no inconvenience that the program operation is continued at the reservation end time T1. In addition, in such a case, in order to prevent a discrepancy between the zero display of the remaining time and the end of the program operation, the actual progress of the program is determined at several points during the program and the remaining time display is corrected and controlled. It is.

Then, when it is determined that the program operation has ended, the buzzer 1
7 to notify the end and time display section 19.
The required time T2 for standard program operation is displayed again. Here, the reason why the required time T2 is displayed again is to prompt the user to turn off the power switch 8. When the power switch 8 is turned off, the required time display is switched to the current time display.

The above-described control ensures that the program operation ends before the scheduled end time, and the laundry can be taken out and hung to dry at the scheduled time.

In addition, in the above-mentioned embodiment, time T3 is set in consideration of water supply and drainage conditions, etc., but if the time required for program operation is set to be long in consideration of the above circumstances, time T3 may be set separately. There is no need to provide one.

Further, the method of making the end of the program operation coincide with the zero display of the remaining time is not limited to the method of the above-mentioned embodiment, and various methods can be used.

In addition, the present invention is not limited to the embodiments described above and shown in the drawings, and it goes without saying that the present invention can be implemented with appropriate modifications within the scope of the gist.

(Effects of the Invention) As described above, in the fully automatic washing machine of the present invention, it is sufficient to simply set the desired end time of the program operation.
There is no need to perform troublesome time calculations as in the past, and errors in time setting can be eliminated, making it easy to use.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a control circuit of a fully automatic washing machine according to an embodiment of the present invention, and FIG. 2 is an explanatory diagram showing the main parts of the same operation panel section. Figure 3 is a flowchart for determining the start of operation as above, Figure 4 is a flowchart for displaying and informing as above, and Figure 5 is a flowchart for determining the start of operation.
This figure shows the standard program as above, and FIG. 6 is a diagram showing the relationship between the reservation end time, driving start time, etc. as above. ■=Electronic control circuit, 19: Time display section, 20: Hour key switch, 21: Minute key switch, 22: Reservation key switch. Agent Patent attorney Aihiko Fuku (2 others) Figure 1 Figure 3 Figure 6

Claims (1)

[Claims] 1. In a fully automatic washing machine that automatically performs each step of washing, rinsing, dehydration, etc. in sequence according to a predetermined program,
a reservation means for arbitrarily setting the end time of the program operation; a calculation means for calculating the start time of the program operation based on the reservation end time set by the reservation means and the required time of the program operation; 1. A fully automatic washing machine characterized by comprising: operation start means for determining that a specified time has been reached and starting the programmed operation.