JPS5949039B2 - How to control the washing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The best way to wash clothes is to adjust the three factors of the amount of water to wash, the action of washing, and the time to wash to optimal conditions according to the amount of clothes.

According to the present invention, when the user measures the amount of items to be washed and adjusts the knobs to the corresponding positions, the three elements are automatically activated.
The present invention relates to a method for controlling a washing machine that is appropriately controlled and responsive.

In conventional washing machines, when washing, the amount of water used and the washing time are adjusted each time based on experience, and the washing force is either automatically reversed or a fixed swirling water flow is selected.

Therefore, the conditions vary, sometimes there are many failures, and when it comes to the amount of water, there is a tendency to put in too much water, which is not desirable in terms of resource conservation.

In addition, the various operations were difficult to perform.

An embodiment of the present invention will be described below based on the drawings.

1 is a washing tank, 2 is a pulsator, the rotating shaft 3 of which is supported by a bearing part 4, and rotates by receiving rotational force from a motor 33.

Reference numeral 5 denotes a drain hose, which drains water through a drain valve 39.

A tube 6 is placed in the middle, a hollow float 7 is inserted into the tube, and a permanent magnet 8 is fixed to the bottom.

Reed switches 9, 10, and 11 are installed in relation to the water level lines 12, 13, and 14 provided on the inner surface of the washing tank 1, respectively, and are normally closed and opened by the action of a permanent magnet. .

One of these terminals is connected together to the solenoid 38 of the water supply solenoid valve 37, and the other end of each of the reed switches 9, 10, 11 connected to the power supply terminal 23 is connected to the contact 15 of the select switch. 16. tied to 17.

The select switch has the contact 15 with 18 as the rotation axis.
, 16, 17 rotate to selectively contact them.

Further, the contactor 21 that slides into contact with the control resistor 22 connected in parallel to the power supply terminals 23 and 24 is coupled and rotated via the rotating shaft 18 and the insulator 20.

25 is a time switch for program control; when the time setting knob 40 is turned in the direction of the arrow 42 and the index 41 is turned to the starting position 41', a relay terminal is connected in series with the solenoid 38 and each reed switch. 26
．． When the relay 46 connected by 27 is not energized, it returns to the direction of arrow 43 and is turned off again.

When the relay 46 is electrically energized, the return in the 43 direction is locked by the relay 46.

The return speed in the 43 direction is limited by a balance wheel 44 so that the rotational force of a mainspring provided on the rotating shaft of the knob 40 is at a certain speed.

That is, since the magnetic flux of the solenoid 45 is configured to cross the balance wheel 44, when the electrical bias of the solenoid 45 is strong, the rotation of the balance wheel 44 becomes slow, and therefore the return speed in the 43 direction becomes low.

When the electrical bias is strong, the return speed in the 43 directions is high.

The solenoid 45 is connected to the power supply terminal 23 via a rectifier 30 at a solenoid terminal 29 .

The time switch 25 is connected to the power terminal 24 and the terminal 32, and the power terminal 23 is connected to the motor 33 as shown in the figure.

Also, terminals 34 and 35 are connected as shown in the figure, but terminal 32
The power supplied from the motor 33 is controlled within the time switch 25 so that the motor 33 is alternately connected to the terminals 34 and 35 to alternately rotate forward or reverse.

This is done by an internal cam, and while the terminal 32 is connected to the terminal 35 or the terminal 34, the cam is provided with a neutral point, that is, an OFF point, where the terminal 32 is not in contact with either the terminal 35 or the terminal 34, so that the motor 33 is completely turned off. It is configured so that it moves to the next rotation after it stops, and furthermore, when the indicator is at the (OFF) or (START) position, the OFF point is always reached.

Reference numeral 48 denotes a power switch, which is built into the time switch 25, and is open when the index of the knob 40 is set to (off), and is closed at other positions.

To describe the operation of the above embodiment of the present invention, first, the clothing 47
into washing tank 1.

If the surface is at or below the water line (2), turn the rotating shaft 18 so that the contact 19 is aligned with 15.

Contactor 21 also moves accordingly. Next, turn the knob 40 and set the indicator to the (start) position, and the power switch 4
8 is closed and terminal 32 is not connected to terminals 34 and 35 and is at a neutral point.

On the other hand, since there is no water in the washing tank 1, the float 7 descends and the permanent magnet 8 is in the state 8, so the reed switch 9 is closed, so the relay 46 and solenoid 38 are electrically connected. energized.

Therefore, the knob is locked and does not move, and the water supply electromagnetic valve 37 is opened, and water is supplied from the water supply pipe 36 into the washing tank 1.

When the water level in the washing tank 1 rises, the float 7 also rises at the same time, and when the water level finally reaches ■, the action of the permanent magnet 8 causes the reed switch 9 to respond, and the one in contact opens.

As a result, the solenoid 38 is deenergized and the water supply is stopped, and the relay 46 is also deenergized, so that the knob begins to move in the 43 direction.

The same applies when the contactor 19 comes into contact with the contacts 16 and 17.

On the other hand, since the solenoid 45 is electrically energized by R/R8 of the power supply voltage, the balance 44 is reversed a corresponding number of times, and the return speed 43 is determined.

Now, as mentioned above, inside the time switch 25,
A cam is built in, and the power terminal 32 is connected to terminals 34 and 35.
are connected alternately to the OFF points, so motor 3
3 rotates forward and reverse repeatedly, and the mode is as shown in Fig. 2.

That is, when the index is set to (start), the OFF point 49 is reached and the motor 33 does not rotate.

When water is supplied to a specified water level line, the motor 33 starts rotating normally, and after rotating normally for a certain period of time according to the value of the rotational speed ω regulated according to the control voltage e, the motor 33 reaches an OFF point 50 and stops.

It rotates again, but this time it reverses and follows the same pattern as above, repeating forward and reverse rotations until finally it reaches the OFF point 51 and the index is (
Go back to ).

Next is the relationship between the contactor adjustment position and the rotational speed ω.
It will look like the figure.

When the control voltage e is small, that is, (2), the braking force on the balance wheel 44 is small, and therefore the rotational speed ω is high.

The relationship between the rotational speed ω and the control voltage e changes exponentially 5
4.

When the contactor 19 contacts each of the contacts 15, 16, and 17, the control voltage e becomes ■, ■, and ■, respectively.

The manner of rotation of the motor 33 is shown in Fig. 3 in the case of ■, and Fig. 2 in the case of ■; the former has the reversal period J, and the chamber operating time T1 has the latter J3. Very small compared to Ta.

The middle ■ is an intermediate mode between the two.

In general, the amount of dirt on clothing can be considered to be approximately proportional to the number of clothing items, that is, the volume.

Therefore, when the amount is large, the operating time of the pulsator 2 must be increased.

When the number of cycles of reversal is left by N, when the contact 19 selects the contact 15, Nxtl, when the contact 17 selects the contact 17, it becomes Nxt3, and Nxt3>Nxtl, and the amount of operation, that is, the total amount of work of the pulsator 2 changes.

On the other hand, since the amount of water supplied is controlled to match the volume, the three factors of washing mentioned at the beginning can be achieved close to the optimum conditions.

As explained above, according to the above embodiment of the present invention, all you have to do is check the water level line that corresponds to the volume of the item to be washed, set the select switch so that it corresponds to that line, and then turn the knob of the time switch to start. The washing conditions that match the volume of the clothes, that is, the amount of water, washing force, and washing time, are automatically programmed to carry out the washing.

This not only eliminates wasted washing water, the amount of detergent required to make the specified concentration of washing liquid, and the power consumption of the motor, but also eliminates damage to fabrics due to over-washing and double-washing due to insufficient washing, which has never happened before. I was able to accomplish what I wanted to wash.

What's more, the amount of time it takes to start washing is the same as before.

In this way, it is highly effective in terms of resource and energy conservation.

[Brief explanation of drawings]

FIG. 1 is a schematic explanatory diagram showing the configuration and function of automatic control of a washing machine according to an embodiment of the present invention, and FIG. FIG. 3 is an explanatory diagram of the operation of the pulsator, and FIG. 4 is an explanatory diagram of the relationship between control voltage and knob rotation speed. 2...Pulsator-17...Float, 25...
Time switch, 40...knob.

Claims (1)

[Claims] 1. A motor that drives a rotary impeller such as a pulsator, a timer that controls the operation of this motor, a water supply valve that supplies water to the washing tub, water level detection means such as a reed switch that detects the water level of the washing tub, and a washing capacity. A selection circuit consisting of a selection means such as a select switch that can be selected according to the water level and a water level detection means, a locking means such as a relay that stops the rotation of the timer, a braking means such as a solenoid that controls the rotation of the timer, and a selection means The water level detection means opens and closes the water supply valve, locks the timer, and applies the brakes to obtain the washing time according to the washing capacity. A method of controlling a washing machine configured as follows.