JPS6125592A - Washing machine operation control device - 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 (Technical field to which the invention pertains) The present invention relates to an operation control device for a washing machine that automatically advances processes such as washing, soaking, spin-drying, and draining.

[Prior art and its problems]

For example, in a single-tank fully automatic washing machine, washing processes such as washing, rinsing, draining, and dehydration are set in a program and proceed in sequence according to the program, but conventional washing and rinsing processes are As shown in Figures 3 and 4, a reversing cam switch C8 controlled by a timer is connected to the washing/drying motor (3), and the switch C8 is rotated clockwise for about 30 seconds with contact a closed to bring it into the neutral state. It stops for about 4 seconds and then
The contact is closed and the counterclockwise rotation is repeated for about 30 seconds for a set time in order, using a reversal type operation. As a result, the laundry continued to rotate in one direction for approximately 30 seconds, resulting in the laundry becoming tangled, and the process of washing and rinsing ending and then moving on to the dewatering process after draining. Sometimes, spin-driving operation is performed with the laundry tangled, and the laundry is abnormally shifted in the washing/spin-drying tank. Driving often stops midway, causing the inconvenience that driving does not proceed smoothly.

[Purpose of the invention]

The purpose of the present invention is to solve the above-mentioned disadvantages of the conventional example, to sufficiently remove the tangles of laundry that occur during the washing and rinsing processes, to reduce the number of stops in the middle of the spin-drying operation, and to provide a washing machine that allows the operation to proceed smoothly. 7f+? The purpose of this invention is to provide a machine operation control device.

[Key points of the invention]

However, according to the present invention, the purpose of the lever is to provide a device for controlling a washing process and a scrubbing process, which consist of a combination of continuous left and right rotation of the motor and a stop in between, in which the motor is turned off before the end of these processes. This is achieved by adding a means to intermittently stop the operation.

[Embodiments of the invention]

Embodiments of the present invention will be described in detail below with reference to the drawings.

Figure 1 shows an embodiment of the operation control device of the present invention. In the electrical circuit diagram of M machine, 1゛・M is a timer (
The timer motors C1 to Cxo, which are part of the timer (1) and serve as a driving source for the timer, are cam switches that are controlled according to the order and time program set in the timer (1). Timer motor T-M, water supply valve (2), washing and dewatering motor (3), drain valve solenoid (4),
One end of each of the buzzer (5') and progress indicator lamp (6) is connected to one end of an AC power source (7). The other end of the power source (7) is a pressure switch (8) that operates according to the water level in the washing and dehydrating tank, which is a cam switch 01 to CIO% of the timer (1).
An unbalance detection switch (9) and a spin-stop switch (
The timer motor T-M and water supply valve (
2), connect to the other end of each of the washing and dewatering motor (3), the drain valve solenoid (4), the buzzer (5), and the progress indicator lamp (6).

The cam switches C2, C3, C5, 'CG, the unbalance detection switch (9), and the dehydration stop switch (10) are on/off switches, and the cam switches C1, C4,
The CT, CB, Cs, Cro, and pressure switches (8) are changeover switches with two contacts a and b.

Contact point a of cam switch C1 is connected to cam switch C7, contact point 1 is connected to dehydration stop switch (10), and cam switch 0.
Contact point a of 7 is connected to a pressure switch (8), and contact point 7 is connected to an unbalance detection switch (9). The unbalance detection switch (9) is connected to the motor (3) via the pressure gauge inch (8) and to the timer motor T/M via the cam switch CG, and the contact a of the pressure switch (8) is connected to the cam. The a side of switch C4 connects to the motor (3) and timer motor T-M via C9, C8 or C1o, and the contact point connects to the water supply valve (2) via cam switch C3, and
The motor (
3) Connect with. Puj Musisochi CG is cam switch C
The drain valve solenoid (4), the timer motor 'r-M, and the cam switch C5 are connected to the buzzer (5) through the b side of 4.

In the above configuration, cam switches 01 to Ce, water supply valve (2),
Motor (3), drain valve solenoid (4), buzzer (5)
), progress indicator lamp (6), power supply (7), pressure switch (8), unbalance detection switch (9), and dehydration stop switch (10) are the same as before, but in the present invention, the motor ( 3), a new cam switch Coo for intermittent stop is connected in parallel with the cam switch C8, and a cam switch C9 for switching from the cam switch C8 to C1o is connected to the a contact side of the cam switch C4.
connected. The cam switch C9 has its contact a side connected to the cam switch C8, and its contact side connected to the cam switch C1.

Next, to explain the operation and function, first, put the laundry and detergent into the washing and dehydrating tank, set the Oitsu (1) to the washing time, and each cam switch built in the timer (1) will be activated as shown in Figure 2. As shown, C1, C3, C4, and C7 are closed to the a side and the lamp (6) is lit. However, at this point, there is still no water in the washing/spinner tank, so press the pressure switch (8).
The contact is closed to the b side, and the motor (3) is not energized, but the cam switch C3 is energized. Cam switch C3
Since it is closed to side a, the water supply valve (2) is energized, and the water supply valve (2) opens to start supplying water into the tank.

When the water level in the tank reaches the specified water level, the pressure switch (8)
is switched to side a, the water supply valve (2) is closed, and water supply is completed. At the same time, the timer motor T-M is energized and the timer (
1) starts the operation, and the washing operation of the operating mote shown in FIG. 2 starts. Until 1 to 2 minutes before the end of the washing operation, the cam switch C9 is closed to side a, so the cam switch C8 is energized, and the washing/extracting motor (3) is activated according to the mode shown at the bottom of Figure 2 by this cam switch C8. Approximately 4
It is automatically reversed every 30 seconds with a second stop. When the washing process approaches the end, about 1 to 2 minutes before the end, the contact of the cam switch Cs switches to the b side, energizing the cam switch CIQ, and the motor (3) stops intermittently for about 8 seconds. Flip it around every 4 seconds. This operation is an intermittent operation with a stop time of 8 seconds, which is twice the rotation time of 4 seconds, so there is a lot of stop time that includes the rotation time due to inertia after the motor (3) stops, and the inertia rotation is Once the laundry has settled down sufficiently, the next reverse rotation starts, and the laundry is fully untangled.

When the washing process is finished, the timer (1) moves to the draining process, and the cam switch group switches C4 to C4 while keeping C1 closed to the a side.
, Ct switches to the b side, and CB closes to the b side. Therefore, the drain valve solenoid (4) is energized through the contacts of the cam switch CT, the unbalance detection switch (9), and the cam switches C6 and C4, and the drain valve is closed. opens and the washing liquid in the tub is discharged outside the machine.

When there is no more water in the tank, the contact of the pressure switch (8) closes to side B again, returning to the state before water supply, water is supplied again in the same manner as the water supply, and when the specified water level is reached, the rinsing process begins. Transition. This rinsing process is performed in the same manner as the washing process, and before the process ends, there is an intermittent reversal operation to loosen the tangled laundry.

When the rinsing process is completed, the process moves to the draining process again in the same manner as above, and when the draining is finished, the timer (1) moves to the dewatering process, and the contacts of the cam switches C], C4, CG, and Ct are set to the previous draining process. The drain valve remains open in the same position. The contact of the cam switch 7-chi C2 is newly closed to the a side, and at the same time, the pressure switch (8) is closed to the b side because there is no water in the tank due to drainage, so the cam switch C2 is energized through this pressure switch (8). , the motor (3) rotates in one direction through communication only with the b side of the cam switch C8, and the dewatering operation progresses.

If the laundry in the tub becomes unevenly distributed during this spin-driving operation, the unbalance detection switch (9) detects this and opens the contacts of the switch (9), cutting off the power to the motor (3). As it sag, rotation stops.

When the dewatering operation ends 1''3', water is supplied again in the same manner as described in +iii, and the process of rinsing, draining, and rinsing is repeated.
Once this is completed, the final drainage process begins.

At the beginning of this drainage process, the contact point of the ζ cam switch C1 is 5.
Switching to the example, the dehydration stop changeover switch (10) is energized, this switch (10) is turned 1ffi, and the cam switch C is turned on.
7, C6, C→ is energized and the 1st water valve opens.

When this draining process is completed, the process moves to the final dewatering process, and the contact of the cam switch C2 is closed to the a side. In this step, the dehydration stop changeover switch (10) is passed through the cam switch C7,
The contact b 1u11 of switch S2.33, the contact side of cam switch C2, and Ca are energized, and the motor (3) rotates in one direction, and from switch S2 to cam switch C6.
, the drain valve solenoid (4) is energized through the contact side of C4, and the drain valve opens.

Shortly before the end of the spin-drying process, the contact of the cam switch C5 is closed and the buzzer (5) is energized, causing the buzzer (5) to sound to notify that the entire washing process has ended. Timer (1
) When the dehydration time set in ) has elapsed, the cam switch C
Contact No. 5 opens to cut off the power to the motor (3) and drain valve solenoid (4), so the motor (3) stops rotating, the drain valve closes, and the dewatering process ends.

In addition, in the final step of draining and dewatering, each cam switch 7 is energized through the dehydration stop changeover switch (10), so opening the switch (10) will stop the operation.

The above explanation was about a single-tank fully automatic washing machine, but it is not limited to cleaning dirt, and it can also be used for washing two-tank machines.
It can also be applied to the rinsing process, making it easier to take out the laundry after washing and rinsing, and saving time as there is no need to loosen the tangled laundry by hand before transferring it to the spin-drying tank.

〔Effect of the invention〕

As described above, the washing machine operation control device of the present invention automatically untangles the laundry during the washing and washing processes by providing a stop time at the end of these processes.
In the next spin-drying process, the spin-drying operation is less likely to be stopped due to uneven shifting of the laundry, and the operation proceeds smoothly.

[Brief explanation of drawings]

Fig. 1 is an electric circuit diagram of a single-tub fully automatic washing machine showing an embodiment of the operation control device of the present invention, and Fig. 2 is a cam switch C1.
~C1o operating mode diagram, Figure 3 is a conventional electrical circuit diagram,
FIG. 4 is an operation mode diagram of the cam switches C1 to C8. (1)...Tie"?-<2)...Water valve (3)...
・Washing/extraction motor (4)...Drain valve solenoid (5)...Buzzer (6)...Progress indicator lamp (7)...Power source (8)...Pressure switch (
9)...Unbalance detection switch (lO)...Dehydration stop changeover switch C1-Coo...Cam switch T-M...Timer motor

Claims (3)

[Claims] (1) In a device that controls the washing process and the rinsing process, which consist of a combination of continuous left and right rotation of the motor and stopping in between, a means is added to intermittently stop the motor before the end of these processes. A washing machine operation control device characterized by: (2) The washing machine operation control device according to claim 1, wherein the intermittent stop time is longer than the rotation time before and after the intermittent stop time. (3) The washing machine operation control device according to claim 1, wherein the means for intermittent stopping is a cam switch that controls energization to the motor.