JPS5850759B2 - How to control a washing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic washing machine that performs a programmed operation that automatically executes a washing process, a draining process, and a rinsing process in sequence.

Conventionally, in this type of automatic washing machine, multiple types of programs are set within the rotation range of the cam group using a group of contacts that are controlled to open and close by a group of rotating cams, and the cam group is rotated from an arbitrary rotational position and assigned to that group. There is a device that performs various tasks such as washing, draining, rinsing, draining, etc. according to a washing program.

However, it is not possible to set up a large number of different washing programs within the rotation range of the cam group due to the pitch of the cams that control the opening and closing of the contacts.
Furthermore, the complicated shape of the hook cam made it difficult to design a timer.

Also, a normal automatic washing machine has a circuit as shown in Figure 1, where 1 is the second
This is an electric timer that operates according to the operation chart shown in the figure, and 1' is a timer motor that drives the timer 1 once.

Reference numeral 2 denotes a water level switch, and the contact bflll is always ON, and when a predetermined amount of water enters the washing tub, the contact a side is switched to ON.

3 is a power switch, 4 is a washing motor, 5 is a drain valve, 6 is a water supply valve, and 7 is a buzzer for notifying the end.

Set the timer 1 knob to "Wash" and switch S
l , S2 g S3 t, S4 a is ONL, when the power switch 3 is turned on, the water supply valve 6 is activated and water is supplied to the washing tub, and when a predetermined amount of water has accumulated, a is turned on from the ON side where the water level switch 2 contacts. Switched to side ON, timer motor 1
' is driven, and switch S7 switches to contact a side or b at the appropriate time.
side is turned on, the washing motor 4 is rotated forward or reverse to perform "washing", and the timer 1 advances and after a certain period of time "washing" is performed.
"Drain water" and switches S4b, S5+ S6b are ON.
Then, the drain valve 5 is energized and drains water.

When the water in the washing tub is drained by this drainage, the contact side of the water level switch 2 is switched ON again.

Proceed further and enter ``Tap Rinse''.

In this process, water is supplied in the same manner as in "washing", the washing motor 4 is driven, the washing progresses, "draining" is performed again, and "water pouring rinsing" is started.

At this time, switch S2. S3. When S4a and S5 are turned on, water is supplied by the water supply valve 6, and a predetermined amount of water has accumulated, the water level switch 2 is turned on.
The contact a side of is turned on, the timer motor 11 is driven, and the switch S7 is turned on the contact a side or b side at the appropriate time, causing the washing motor 4 to rotate forward or reverse, and the water supply valve 6 continues to supply water by turning the switch S and ON. Rinse with water
Immediately before the end of the process, the contact a side of the switch S6 is turned on, the end buzzer 7 sounds, and the process ends.

In this way, normal automatic washing machines only operate according to a predetermined washing program.

By the way, even in automatic washing machines like this, there are no functions such as "washing" or "washing".
It is possible to perform ``washing'' and ``rinsing'' independently, but always pay attention to the progress of the timer and
It is necessary to stop immediately when the operation is completed, and if the stop is delayed, it will cause inconveniences such as moving on to the next operation.Also, the ``rinsing'' in the program is set for a relatively short time. It was not possible to perform rinsing continuously for a long time.

The present invention has been made in view of this point, and in addition to a program operation that automatically sequentially executes a washing process consisting of water supply and washing, a draining process, and a rinsing process consisting of repeating water supply, rinsing, and draining, washing, The rinsing process can be performed independently and stopped automatically, and the disadvantage of having a complicated cam shape that makes it difficult to design a timer is eliminated, and when rinsing is performed individually, it can be performed continuously for a long time. This is how it was done.

The present invention will be explained in detail below according to one embodiment.

Note that the same parts as in FIGS. 1 and 2 are denoted by the same reference numerals.

In the electric circuit shown in Fig. 5, 1 is an electric timer that operates according to the operation chart shown in Fig. 6, 1' is a timer motor that drives this timer 1, and 2 is a water level switch, which is always in contact. When it is turned on and a predetermined amount of water enters the washing tub, the contact a side is turned on.

4 is a washing motor, 5 is a drain valve, 6 is a water supply valve, and 7 is a buzzer for notifying the end of washing.

Reference numeral 8 denotes a changeover switch installed outside the washing machine as a changeover means. When set to "I", contact a turns OFF and the circuit is cut off; when set to "■", contacts a, c, e
, f are each turned ON.

(Status shown in Fig. 5) When the selector switch 8 is set to Ill, contact a is made.

The configuration is such that b, d, and g are each turned ON.

When this selector switch 8 is set to rIJ, the contact a becomes O.
Since it is FF, no matter what position Timer 1 is at, it will not start.

Also, no matter what position it is in during operation, setting it to rIJ will stop the operation.

The operation when the selector switch 8 is set to rlIJ and rlJ will be described below.

When timer 1 is set to wash, switch S1. When S2, S3a, 84, S5a, and S6a are turned on and the selector switch 8 is set to rIIJ, the water supply valve 6 is energized and operated, and water is supplied.

When water accumulates in the washing tub and a predetermined amount of water accumulates, the contact a side of the water level switch 2 turns ON, and the timer motor 1'
, the switch SIO is turned ON at the appropriate point a side or the contact side, and the washing motor 4 is rotated forward or reverse to perform "washing", and the timer 1 advances, and after a certain period of time, it enters "draining". S6b.

It becomes S8a, S, and b, and "drainage" is performed, but if the selector switch 8 is operated in Ill, it stops when the water becomes drained.

That is, if the selector switch 8 is set to ``IN'', the operation ends with ``washing only'', and before the operation ends, the contact point a of 87 is turned ON and the buzzer sounds.

Then, when the selector switch 8 is operated at rI[J, the water enters the "pre-rinsing" after "draining", water is supplied in the same manner as in the "washing", and the washing motor 4 is driven to perform the "pre-rinsing".

At this time, if the selector switch 8 is set to "mouth", switch S7
The contact a side of is turned on, and the water supply valve 6 continues to supply water regardless of the water level switch 2, resulting in a "water pouring rinse." The circuit of the drain valve 5 is also switched during the next "draining," so it is a "water pouring rinse." Just before the end, the contact a side of the switch S7 turns ON and the end buzzer 7 sounds.

When the selector switch 8 is set to rIIJ, "Rinse"
After finishing, it becomes "draining" again, and then "pre-rinsing" → "draining" and entering "filling rinsing", and the contact a of the switch S8
When the contact a side of switch S6 is ON, water supply continues and "water pouring rinsing" is performed, and at the end, switch S is turned OFF.
When the result is N, the end buzzer 7 sounds to end the washing process.

Next, for "drainage only", whether the selector switch 8 is rI[J or Ill, switch Sl v 82 +S,
Contacts S8 and S8 are turned on to drain water and turned off.

In summary, in this embodiment, the selector switch 8 is
(2) That is, when switching to program operation and setting the timer 1, a washing step consisting of water supply and washing, a draining step, and a rinsing step consisting of repeating water supply, rinsing, and draining can be automatically executed in sequence.

Then, when the selector switch 8 is turned to "IN", that is, to simple operation, and the timer 1 is set to "wash", the operation of the timer 1 is stopped during the draining stroke section of the programmed operation, so only the washing step is executed and automatically stopped.

Furthermore, when the timer 1 is set to the first "pre-rinse" in the program operation with the changeover switch 8 switched to simple operation, water injection rinsing is executed and the water injection rinsing continues for a long time over the entire rinsing process section during the program operation. You can do it by doing this.

As described above, according to the present invention, it is possible to perform a program operation that automatically sequentially executes the washing process consisting of water supply and washing, the draining process, and the rinsing process consisting of repeating water supply, rinsing, and draining. Washing and rinsing can be performed independently without the drawbacks of complicating the cam shape and having to design a timer, unlike those that incorporate multiple programs within the rotation range of the group. When used alone, it can be performed continuously for a long time over the entire rinsing process section during program operation, and the rinsing time can be arbitrarily selected to achieve the desired rinsing. be.

[Brief explanation of the drawing]

Figure 1 is the electrical circuit diagram of a conventional automatic washing machine, and Figure 2 is the electrical circuit diagram of a conventional automatic washing machine.
Figure 3 is an operation chart of the switch contact group; Figure 3 is a display section provided to correspond to a pointer linked to a conventional timer motor; Figure 4 is a display section provided to correspond to a pointer linked to a timer motor of the present invention. The display section, FIG. 5 is an electric circuit diagram of the automatic washing machine of the present invention, and FIG. 6 is an operation chart of the switch contact group shown in FIG. 1... Timer 1'... Timer motor, 4... Washing motor, 5... Drain valve, 8... Changeover switch.

Claims (1)

[Claims] 1 A timer with a switch group whose opening and closing are controlled by a group of rotating cams and a water level switch automatically sequentially execute a washing process consisting of water supply and washing, a draining process, and a rinsing process consisting of repeating water supply, rinsing, and draining. In devices capable of program operation, a changeover switch is provided to switch between the program operation and simple operation by changing the connection relationship of the circuit, and when the changeover switch is switched to simple operation, the timer is set during the washing process period of the program operation. When the timer is set to the rinsing process section of the program operation, the washing process is executed in the corresponding washing process section and stopped in the draining process section immediately after that, and when the timer is set to the rinsing process section of the program operation mentioned above, rinsing is executed continuously over the entire corresponding rinsing process section. A method for controlling an automatic washing machine, characterized in that: