JPS5822710Y2 - Control device for two-tub type washing machine - Google Patents

Description

[Detailed explanation of the invention] This invention has a dehydration tank and a washing tank equipped with a pulsator installed side by side, and a part of the program such as washing, rinsing, and draining depending on the degree of dirtiness of the items to be washed and the type of items to be washed. Regarding a two-tank dehydrating washing machine equipped with a control device that rotates the camshaft of the time switch in rapid forward rotation in order to eliminate At the end of other courses, the water remaining in the washing tank and the water generated by the dehydration process can be discharged to the outside by operating the dehydration time switch. To ensure that water is drained and water is prevented by a simple configuration of a contact point of a dewatering time switch and a select switch.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 selects one of a number of programs and operates contacts S1 to S5 using a push-button select switch equipped with a starting switch.

2 is an automatic time switch equipped with a large number of cam contacts T1 to T9.

The selection switch 1 and the automatic time switch 2 allow operations such as the program shown in FIG. 2 to be performed.

Here, the transition from the off position to the wash position of the program is performed as follows.

By pushing □ into the push button of the select switch 1, the contact S1 closes the a side, and when the push button 1 is released and the push button 1 is locked at the same time, the contact S1 closes to the b side.

When the contact S1 closes to the a side as described above, the fast forward motor DM of the automatic time switch 2 is energized, and the cam contact T1
The cam shaft of the cam mechanism that controls ~T9 enters the fast forwarding state, and the program moves from the off position to the wash position.

From then on, a program commensurate with the standard course will be carried out.

The program from washing to draining to carry out this standard course will be explained based on the operations of the select switch 1, automatic time switch 2, and electrical components controlled by these switches.

The camshaft rotates from cutting to cleaning as described above.
From that moving position, it transitions to normal operation.

Since the contact S1 is in a locked state with 1 on the button, the b side is in a closed state.

At this time, the cam contact T2 is not in contact with either a or l).

Here, if you press 3 on the button to complete the standard course, the third
As shown in the figure, the contact S2 is closed to the a side, the contact S3 is closed to the b side, and the contact S4 is closed to the b side, and the cam contact T4 is closed to the a side, so the NO side of the pressure switch 3, the cam contact T5 Electricity is applied to the electromagnetic water supply valve 4 through the a side of the washing machine, and the valve 4 opens to supply water into the washing tub.

When the water supply into the washing tub reaches the specified water level, the pressure switch 3 switches from the NC side to the NO side, stops the supply of electricity to the water supply valve 4 side, and from this NO side passes through the b side of the cam contact T3, The timer motor TM for normal feeding is activated, and electricity is supplied from the a side of the cam contact T1 to the a side or b side of the water flow selector switch 5 and the motor 6 for driving the stirring blade via the automatic reversal contact T9 or T8. .

This starts the washing process.

This washing transition can be performed by energizing the timer motor TM from the b side of the cam contact T3.

Once the above-mentioned wash is acidified for a predetermined period of time, it is then transferred to waste water.

That is, in the same way as washing, the a side of the cam contact T4 is energized,
Further, the electromagnetic drain valve 7 is energized via the b side of the cam contact T7 and the b side of the cam contact T5 to drain water.

This drainage program transition is performed by energizing the timer motor TM from the a side of the cam contact T3.

The next first rinse is performed in the same cam contact state as in the above-mentioned washing, and in particular, by switching the switch 8, either soak rinse or overflow rinse can be selected.

That is, if the switch 8 is set to the on state from the beginning, the electromagnetic water supply valve 4 is energized even though the pressure switch 3 is on the NO side, and so-called overflow rinsing can be performed.

Once this first rinse is completed, drainage is performed in the same manner as described above, followed by a second rinse, drainage, and then a third or final rinse.

Whether the rinse water is drained when this final rinse is completed or whether the drain is stopped to be stored for use in the next wash depends on the initial on/off operation of the switch 9. .

That is, at the start of drainage after the final rinse, the cam contact T4 is not closed to either the a side or the b side, and the cam contact T4
The electromagnetic drain valve 7 is not energized through the b side of the cam contact T5 and the b side of the cam contact T5.

If the switch 9 is closed, regardless of the state of the cam contact T4, electricity is applied through the b side of the cam contact T7 and the b side of the cam contact T5 to open the drain valve 7, allowing water to be drained. If the drain valve 9 is opened in advance, the drain valve 7 will not open and the drain will be stopped as described above.

The above operation is a standard cycle that depends on the operation of button 3.

When 1 is pressed on the button, the subsequent steps are omitted from the time the pressing operation is performed during the standard course or other later-described economical or wash-only courses, and the machine returns to the off state.

For details, when you press 1 on the button, the b side of contact S1 →
Current is applied to the fast-forward motor DM through the a side of the cam contact T2, the b side of the contact S3, and the b side of the contact S2.

This fast forward is the same as off.

Button 2 corresponds to the saving course. When pressed, the a side of the contact S4 closes, and while the cam contact T6 is closed to the a side, the fast forward motor DM is energized to perform fast forward operation. At the same time, after the cam contact T6 closes to the b side, the same operation as the above-mentioned washing is performed.

Button 4 corresponds to the wash only course, and when this button is pressed, the contact S3 closes to the a side.

Since the cam contact T2 closes to the b side only for washing, and then to the a side, when the cam contact T2 is on the b side, normal feed is performed to perform the above-mentioned washing, and when the cam contact T2 closes to the a side, fast forwarding is performed. I am anxious to do this.

Next, dehydration is performed by operating the dehydration time switch 10, which has the - front terminal connected to the power source and the other terminal connected to one terminal of the dehydration motor 11 and the normally closed contact S5.
energized and rotated to increase dehydration ability.

Also, if you open the dehydration lid during dehydration, the safety switch 1
2 is turned off, cutting off the power to the motor 11.

The normally closed contact S5 of the select switch 1 is turned off only when button 4 is pressed, and when the dehydration time switch 10 is wound up and none of the above-mentioned courses are performed, the contact S5 is turned off. is not off, this contact S5 → the b side of the force cam contact T4, switch 9 → the NC side of the pressure switch 3 → the b side of the cam contact T5.
The drain valve 7 is energized through the side, and this valve 7 opens.

Therefore, the water remaining in the dewatering and washing tank during the dewatering operation can be discharged to the outside.

Considering this, when button 4 is pressed, when switch 9 is open, and when pressure switch 3 is on the NO side, the drain valve 7 is not energized at all, and the above-mentioned washing mode is applied. This prevents the draining operation from occurring at the end of this course.

A buzzer 13 notifies the end of the process, and is connected to the b side of the cam contact T1.

As described above, the control device for the two-tub dehydrating washing machine of the present invention is
A time switch that controls the rotation of the stirring blade installed in the washing tub by connecting one terminal of the dehydration time switch to the power supply and the other terminal to the normally closed contact of the dehydration motor and program selection switch. The other terminal of the normally closed contact is connected to the drain valve through a contact that is turned on in the off position among the various contacts of the drain valve, and the normally closed contact is configured to open only when washing is desired. Due to the relationship between the normally closed contact of the switch and the dehydration time switch, when carrying out a wash-only course, it is possible to prevent the discharge of cleaning liquid that can be used again at the end of this course, and also to prevent the discharge of the cleaning liquid that can be used again at the end of the course, and also to prevent the dehydration It is extremely useful in use because it allows water remaining in the dehydration and washing tank to be discharged to the outside, and the normally closed contact of the select switch is associated with the above two functions, making it extremely simple to configure. be.

[Brief explanation of the drawing]

FIG. 1 is a control circuit for a washing tub according to an embodiment of the present invention, FIG. 2 is a diagram showing the operating state of the cam contact, and FIG. 3 is a diagram showing the operating state of the select switch. 1...Select switch, S5...Normally closed contact, 2...Time switch, T4...
...Cam contact, 7...Drain valve, 6...
Motor, 10...Dehydration time switch, 11.
...Dehydration motor.

Claims (1)

[Scope of utility model registration request] This is a two-tank dehydrating washing machine with a dehydrating tank and a washing tub installed side by side, with one terminal of the dehydrating time switch used as the power source and the other terminal as the normally closed contact of the dehydrating motor and the select switch for program selection. The other terminal of the normally closed contact is connected to the drain valve through a contact that is connected to one terminal and turns on in the OFF position among the various contacts of a time switch that controls the rotation of the stirring blades installed in the washing tub. A control device for a two-tub dehydrating washing machine, wherein the normally closed contact is opened only when washing is desired.